SERIES PVI-2TE
2-12 µm IR PHOTOVOLTAIC DETECTORS
THERMOELECTRICALLY COOLED
OPTICALLY IMMERSED
SPECTRAL RESPONSE
PVI-2TE-3
PVI-2TE-4
PVI-2TE-5
D*, cmHz1/2/W
1.0E+11
1.0E+10
PVI-2TE-6
PVI-2TE-8
PVI-2TE-10.6
1.0E+9
λ, µm
1.0E+8
2
3
4
5
FEATURES
•
•
•
•
•
•
•
•
•
High performance in the 2-12 µm range
without LN-cooling!
Fast response
No flicker noise
Convenient to use
Wide dynamic range
Compact, rugged and reliable
Low cost
Prompt delivery
Custom design upon request
6
7
8
9
10
11
12
DESCRIPTION
The PVI-2TE-n
(where n is wavelength λop, in
micrometers, to which the detector is optimized) series
photodetectors are two-stage TE-cooled IR photovoltaic
detectors, which have been optically immersed to high
refractive index GaAs (or CdZnTe) hyperhemispherical
(standard) or hemispherical (option) lenses. These
devices can be optimized for the maximum performance
anywhere within 2 to 11 µm range. High performance
and stability were achieved by using a variable gap
(Hg,Cd,Zn)Te semiconductors, optimized doping and
improved surface processing. Custom devices with
quadrant cells, multielement arrays, various immersion
lenses, windows and optical filters are available on
request.
Standard detectors are available in modified TO-8
packages with BaF2 windows. Other packages, windows
and connectors are available upon request. See
application notes for more details.
SPECIFICATION
@ 20ºC
CHARACTERISTICS*
UNITS PVI-2TE-3 PVI-2TE-4 PVI-2TE-5 PVI-2TE-6 PVI-2TE-8
λop
μm
3
4
5
6
8
Detectivity:
cmHz1/2/W ≥1∙1011
at λpeak
≥6∙1010
≥3∙1010
≥2∙1010
≥6∙109
at λop
≥5∙1010
≥3∙1010
≥1.5∙1010
≥1∙1010
≥3∙109
Responsivity
A/W
≥1
≥1.2
≥1.5
≥2
≥1
Response time
ns
≤1
≤20
≤20
≤10
≤7
Parallel resistance-optical
Ω·cm2
≥30
≥13
≥2
≥0.30
≥0.1
area product
Optical area length × width
mm x mm
0.1×0.1; 0.25×0.25; 0.5×0.5; 1×1; 2×2;
or diameter for round devices
mm
ø0.1; ø0.25; ø0.5; ø1; ø2; ø3
Operating temperature
K
220-240
Acceptance angle, F#*
deg
35, 1.59
*
PVI-2TE-10.6
10.6
≥3∙109
≥1∙109
≥0.7
≤3
≥0.01
0.1×0.1; 0.25×0.25;
ø0.1; ø0.25;
See application notes for more details.
ACCESSORIES
- VPAC and VPDC preamplifiers
•
DC or AC
• Bandwidth: 100kHz, 300kHz, 1MHz, 5MHz, 10MHz, 20MHz, 50MHz, 100MHz, 250MHz and 1GHz.
- Supply units
- Thermocooler controllers
Model DR-1B
the combination of the support
(DRB-1) and the heat sink (DR-1)
Model DR-10B
the combination of the support (DRB-1)
and the heat sink for wide-band
preamplifiers (>50 MHz) (DR-10)
STCC-04
Standard Thermoelectric Cooler Controller
The preamplifiers are designed for stable of-the-shelf operation and the best resulting performance with
dedicated detectors. We offer also integrated detector/preamplifier/TE cooler packages that provide more
efficient detector/preamplifier match at high frequencies, better EMI shielding. The integrated packages
can be customized to specific applications.
HEADQUARTERS
3 Swietlikow Str.
01-389 Warsaw
POLAND
SALES OFFICE
11a Wyki Str.
01-318 Warsaw
POLAND
tel.: +48 22 666 01 45
fax: +48 22 666 01 59
http://www.vigo.com.pl
tel.: +48 22 666 14 10
fax: +48 22 665 21 55
e-mail: [email protected]
AP, 06.05.05
THE FOCAL PLANE POSITION OF THE DETECTOR
IS DEPENDENT ON THE DIAMETER OF THE IMMERSION LENS
WHICH IN TURN IS VARIED WITH THE OPTICAL AREA OF THE DETECTOR
position of external lens
36°
d
r
6±0.1
8±0.1
5.75±0.1
11.1±0.1
F
Ø6
Ø15.2±0.05
Vigo TO-8 style 2-stage TEcooler package
With GaAs immersion lens
F - focal length of the external optics, if any
n – index of refraction, which for GaAs is approximately 3.3; values vary with λ due to dispersion
Some details and examples
0.5x0.5
Optical size of detector LOPT × LOPT
2x2 and
and
1x1
2x2
mm x mm
3x3
smaller
Diameter of the immersion lens 2r , mm
1.0
1.6
2.5
3.2
2
Distance d = r ( n − 1 ) / n from the base of the lens to
1.5
2.4
3.75
4.8
the apparent plane of the detector, mm
46x46
184x184
Physical size of detector LPHYS = LOPT / n 2
and
and
92x92 184x184
µm x µm
smaller
276x276
SERIES PVMI-2TE
8-12 µm IR PHOTOVOLTAIC MULTIPLE JUNCTION DETECTORS
THERMOELECTRICALLY COOLED
OPTICALLY IMMERSED
9.00E+08
8.00E+08
7.00E+08
D*, cmHz1/2/W
SPECTRAL RESPONSE
6.00E+08
5.00E+08
4.00E+08
3.00E+08
2.00E+08
λ, µm
1.00E+08
2
2.5
3
3.5
4
4.5
5
5.5
FEATURES
•
•
•
•
•
•
•
•
•
High performance in the long wavelength
range without LN-cooling
Fast response
No flicker noise
Convenient to use
Wide dynamic range
Compact, rugged and reliable
Low cost
Prompt delivery
Custom design upon request
6
6.5
7
7.5
8
8.5
9
9.5
10
10.5
11
11.5
12
DESCRIPTION
The PVMI-2TE-n (where n is wavelength λop, in
micrometers, to which the detector is optimized) series
photodetectors are two-stage TE-cooled IR photovoltaic
detectors, which have been optically immersed to high
refractive index GaAs or CdZnTe hemispherical or
hyperhemispherical lenses. These devices can be
optimized for the maximum performance for long
wavelength, large area devices. High performance and
stability were achieved by using a newly developed
variable gap semiconductors (HgCdZnTe), optimized
composition/doping
profiles and improved surface
processing.
Standard detectors are available in modified TO-8
packages with BaF2 windows.
Other packages and windows are available upon request.
See application notes for more details.
Custom devices with quadrant cells, multielement arrays,
specialized packages, connectors, windows and optical
filters are available on request.
SPECIFICATION
@ 20ºC
CHARACTERISTICS
UNITS
λop
µm
Detectivity:
cmHz1/2/W
at λpeak
at λop
Responsivity - Width Product at λop V·mm /W
Response time
ns
Resistance*
Ω
Optical area length × width
mm x mm
Operating temperature*
K
Acceptance angle, F#*
deg
*
PVMI-2TE-10.6
10.6
≥8∙108
≥2∙108
≥2.5
≤3
30-200
0.1×0.1; 0.25×0.25; 0.5×0.5; 1×1; 2×2;
220-240
35, 1.59
See application notes for more details.
ACCESSORIES
- VPAC and VPDC preamplifiers
• DC or AC
• Bandwidth: 100kHz, 300kHz, 1MHz, 5MHz, 10MHz, 20MHz, 50MHz, 100MHz, 250MHz and 1GHz.
- Supply units
- Thermocooler controllers
Model DR-1B
the combination of the support
(DRB-1) and the heat sink (DR-1)
Model DR-10B
the combination of the support (DRB-1)
and the heat sink for wide-band
preamplifiers (>50 MHz) (DR-10)
STCC-04
Standard Thermoelectric Cooler Controller
The preamplifiers are designed for stable of-the-shelf operation and the best resulting performance with
dedicated detectors. We offer also integrated detector/preamplifier/TE cooler packages that provide more
efficient detector/preamplifier match at high frequencies, better EMI shielding. The integrated packages
can be customized to specific applications.
HEADQUARTERS
3 Swietlikow Str.
01-389 Warsaw
POLAND
SALES OFFICE
11a Wyki Str.
01-318 Warsaw
POLAND
tel.: +48 22 666 01 45
fax: +48 22 666 01 59
http://www.vigo.com.pl
tel.: +48 22 666 14 10
fax: +48 22 665 21 55
e-mail: [email protected]
AP, 06.05.05
SERIES PVI
2-11 µm IR PHOTOVOLTAIC DETECTORS
OPTICALLY IMMERSED
SPECTRAL RESPONSE
D*, cmHz1/2/W
1.0E+11
1.0E+10
PVI-3
PVI-4
PVI-5
PVI-6
1.0E+9
PVI-8
1.0E+8
λ, µm
1.0E+7
2
•
•
•
•
•
•
•
•
•
3
FEATURES
Ambient temperature operation
No bias required
Short response time
No flicker noise
Operation from DC to VHF
Perfect match to fast electronics
Wide dynamic range
Low cost
Custom design upon request
4
5
6
7
8
9
DESCRIPTION
The PVI-n (where n is wavelength λop, in micrometers, to
which the detector is optimized) series photodetectors are IR
photovoltaic detectors, which have been optically immersed to
high refractive index GaAs (or CdZnTe) hyperhemispherical
(standard) or hemispherical (option) lenses. These devices can
be optimized for the maximum performance anywhere within
2 to 11 µm range. High performance and stability were
achieved by using a variable gap (Hg,Cd,Zn)Te
semiconductors, optimized doping and improved surface
processing. Custom devices with quadrant cells, multielement
arrays, various immersion lenses, windows and optical filters
are available on request.
Standard detectors are available in modified TO-39 or
BNC-based packages with no windows. Other packages,
windows and connectors are available upon request. See
application notes for more details.
SPECIFICATION
CHARACTERISTICS*
λop
Detectivity:
at λpeak
at λop
Responsivity
Response time
Parallel resistance-optical area
product
Optical area length × width
or diameter for round devices
Operating temperature
Acceptance angle, F#
* See application notes for details
@ 20ºC
UNITS
μm
PVI-3
3
PVI-4
4
PVI-5
5
PVI-6
6
PVI-8
8
cmHz1/2/W
≥2∙1010
≥1∙1010
≥0.75
≤15
≥5
≥4∙109
≥2∙109
≥1
≤15
≥1
≥2∙109
≥1∙109
≥1.25
≤15
≥0.3
≥8∙108
≥4∙108
≥1.5
≤12
≥0.1
≥4∙108
≥2∙108
≥1
≤7
≥0.1
A/W
ns
Ω∙cm2
mm x mm
mm
K
deg
0.25×0.25; 0.5×0.5; 1×1; 2×2;
ø0.25; ø0.5; ø1; ø2; ø3
300
35, 1.59
ACCESSORIES:
- VPAC and VPDC preamplifiers
• DC or AC
• Bandwidth: 100kHz, 300kHz, 1MHz, 5MHz, 10MHz, 20MHz, 50MHz, 100MHz, 250MHz and 1GHz.
-Supply units
Standalone preamplifier package
Preamplifier with PVI detector
The preamplifiers are designed for stable of-the-shelf operation and the best resulting performance with
dedicated detectors. We offer also integrated detector/preamplifier packages that provide more efficient
detector/preamplifier match at high frequencies, better EMI shielding. The integrated packages can be
customized to specific applications.
HEADQUARTERS
3 Swietlikow Str.
01-389 Warsaw
POLAND
SALES OFFICE
11a Wyki Str.
01-318 Warsaw
POLAND
tel.: +48 22 666 01 45
fax: +48 22 666 01 59
http://www.vigo.com.pl
tel.: +48 22 666 14 10
fax: +48 22 665 21 55
e-mail: [email protected]
AP, 06.05.05
Boston Electronics Corporation
91 Boylston Street, Brookline, Massachusetts 02445 USA
(800)347-5445 or (617)566-3821 fax (617)731-0935
www.boselec.com
[email protected]
When do I need to use a preamp? (and other comments on
signal levels and device saturation)
One of the very convenient things about Vigo MCT detectors is that many users will not require a preamplifier but can instead
go directly into an oscilloscope for display of fast transients, usually laser pulses. When is this the case and when not? Briefly,
the answer is, for a CW signal, you probably need a preamp, and for short pulses widely spaced in time, you probably do not
need a preamp.
The question relates to saturation levels in the detector. We consider “saturation” to be the point at which the detector output
deviates from linear by 20%. You might want to choose another percentage deviation from linearity, but the idea remains the
same and in fact, once saturation begins it seems to happen quickly so there will not be a large difference whether we speak of
1%, 20% or 50% deviation.
Saturation is most easily described NOT in terms of input optical signal but in terms of output electrical signal. For example,
for the model PD-10.6-3, we expect output saturation at about 10 millivolts for a CW signal, and at about 600 millivolts for a
single short pulse. These represent the extreme cases. Since few if any users have oscilloscopes that will display a signal of 10
millivolts with much deflection on the CRT, those users trying to see a CW signal will pretty much always need a preamp.
However, users whose input signals are short and strong (say < 1 µsec and > 5 watts peak) should be able to dispense with the
amplifier and go direct to the scope using the PD-10.6-3. A certain amount of experimentation around these levels to optimize
them should be expected.
Many users in fact have input waveforms that can be considered neither CW nor “short single shot” pulses. This gets us into
the intermediate “quasi-CW” regime. There are no firm rules here, but some guidance is available from experience:
• Many CO2 lasers are called “pulsed” but are in fact better described as modulated. Duty cycle is in the range of 50%
and the modulation frequency is in the kHz region. These should be considered CW sources and a preamp used.
• Pulsed lasers with short pulses and duty cycles <<1% (for example pulses less than 1 µsec duration repeated at 1000
Hz) will probably act like single shot sources and the preamp can usually be omitted.
• Intermediate values of pulse length and duty cycle may act in an intermediate fashion.
How can you determine whether you are in the intermediate regime? Clue number one, if you cannot get more than a few
millivolts out, despite raising the input power level, you are likely saturated and you had better reduce that input power ASAP
before you fry the detector. A good way of seeing whether you are in saturation is to attenuate the input optical signal and see
if the output electrical signal reduces proportionally. This is valid whether there is a preamp in the system or not. You do not
need a calibrated optical filter to try this. For example, one piece of uncoated germanium 1 mm thick will transmit about 50%
from 2 to 20 µm or so. So two pieces (not too close together to avoid interference effects) will transmit about 25%. Try one,
then two, and if you do not see the expected T and T2 reductions, back that input power off. No Ge on hand? Try a piece of
window screen. Or take your input as the reflection from a scattering surface and increase the distance to reduce the signal. A
diffuse reflector will attenuate as 1/r2 where r is the distance. A sometimes confusing symptom of saturation is appearance of a
slower than expected fall time despite apparently credible rise of a pulse measurement. This can be due to thermal effects, and
again the cure is to lower the power on the detector and if necessary, use a preamp.
These comments are directed specifically at the PD-10.6-series of detectors although they apply generally to all our devices.
However, saturation is not so well know for most of the others, especially the immersed devices. Immersion is a tool to
improve signal to noise and saturation concerns imply that you have excess signal and hence plenty of S/N. Therefore, the
question is usually moot.
For sample numerical calculations on saturation levels, see the end papers to our publication “Predicting the Performance of a
Photodetector”
Boston Electronics Corporation
91 Boylston Street, Brookline, Massachusetts 02445 USA
(800)347-5445 or (617)566-3821 fax (617)731-0935
www.boselec.com
[email protected]
Options for mounting and powering / controlling a
Vigo thermoelectrically cooled IR detector:
There are two possibilities; either the user makes his own mount for the detector or he uses the
Vigo DR-style mount.
1. Choose the Vigo DR-style “Lab Bench” mount ONLY if (A) it is not too large as-is for
the space it will be used and (B) only if operation at a fixed stable temperature is
required.
2. Choose to do it yourself if the Vigo DR-style mount does not fit the space available or if
you need to squeeze out the highest sensitivity at any given ambient temperature
(maximize delta-T) rather using than a stabilized temperature set point.
Do it yourself:
The sketch on the following page illustrates an acceptable self fabricated heat sink and how to
mount the detector on it.
If you make your own heat sink you will also need to supply your own power and control
electronics for the thermoelectric cooler. The model PID1500 TE cooler controller from
Wavelength Electronics (also available from Boston Electronics) is suitable as are other similar
devices. Excellent external preamps, AC-coupled to 500 MHz and DC-coupled to 200 MHz are
described in a following page. Also external versions of the internal heat sink enclosed preamp
from Vigo are available as external devices and often can be delivered faster than the former
line.
Use our Lab Bench Mount:
Our Lab Bench Mount consists of a cylindrical heat sink on a stalk with a weighted base. There
is room inside the heat sink for a preamplifier and we offer a full range of preamps internal to the
heat sink. Or the user can use an external preamp. Finally two choices of cooler controller are
offered, one with +/-1C temperature stability (corresponding to ~2.5% stability of detector
output) and the other with +/-0.1C temperature stability for ~0.25% output stability.
Sketches with dimensions and with details of the available preamps and controllers are attached.
Precautions for Handling TE-cooled Detectors
Thermoelectrically-cooled detectors can be kept cooled at a constant temperature during operation. The
built-in thermoelectric cooler requires a supply current much higher than the maxiumum allowable current
used for the thermistor and detector element incorporated in the same package. If the supply current for
the thermoelectric cooler is applied to the thermistor or detector element even momentarily, the thermistor
and detector element may be damaged. Sufficient care must be taken when dealing with supply currents.
1)
Handling
The Peltier element incorporated in thermoelectically-cooled detectors is susceptible to excessive shocks,
drop impacts, and vibrations. Use sufficient care in handling this type of detector.
2)
Heat Sink
When operating a TE-cooled detector, always use a heat sink. If the detector is operated without using a
heat sink, the detector element temperature will rise due to poor heat dissipation. If heat dissipation is
inadequate, the detector element may deteriorate due to high temperature, eventually leading to
permanent damage.
Always use a heat sink having the specified thermal resistance (2°C/W or less for three-stage TE-cooled
MCT; 3°C/W or less for two-stage TE-cooled MCT detectors). The detector’s metal package should be
securely attached to the heat sink. Although the heat capacity required of the heat sink depends on the
current consumption of the Peltier element, we recommend using a heat sink with a heat capacity of 2
W/°C or better. The heat sink must be capable of dissipating the heat generated by a thermoelectric
cooler increasing the header temperature less than a few kelvins. In practice, the radiator plate under the
detector header should be at least 2mm thick.
RECOMMENDED MOUNTING
The detector must be firmly mounted on the heat sink. This can be done by the use of a thin layer of heat
conductive epoxy. Alternately, apply silicone grease between the heat sink and the detector’s metal
package. This improves the coupling efficiency of the heat sink and package, thus reducing the thermal
resistance between them.
When the detector is installed on the heat sink, be sure not to apply any excessive stress to the package.
This may cause cracks or leakage in the package. Do not attach the heat sink to the cap; this may cause
dehermetization of the detector
Boston Electronics Corporation, 91 Boylston Street, Brookline MA 02445
(800)347-5445 or (617)566-3821 * fax (617)731-0935 * [email protected] * www.boselec.com
Boston Electronics Corporation
91 Boylston Street, Brookline, Massachusetts 02445 USA
(800)347-5445 or (617)566-3821 fax (617)731-0935
www.boselec.com
[email protected]
If you choose to make your own heat sink for out TE-cooled detectors, the thermal
impedance should be < 3K/W. The PID1500 and accessory evaluation PCB make a
convenient device for power and control of the cooler.
PID1500 TE Cooler Controller
•
•
•
•
•
•
•
1
2-4
5-24
Quantity
Prices $246.00 $195.00 $167.00
•
•
•
Single Supply Operation: +5V to +12 V
Up to 1.5 Amps.
< 0.008 ° C stability (24 hours)
Adjustable Current Limit
+ 8V compliance with +12V Input
Analog input to adjust Temperature
Setpoint remotely
Supports Thermistors, IC sensors, or
RTD's
Temperature Setpoint, Proportional
Gain, and Current Limit are user
adjustable
Remotely Enable / Disable Output
Can be Modified for Resistive Heater
Control
General Description
The PID1500 Linear Bipolar Thermoelectric Temperature Controller provides ultra-stable, low
noise temperature control from a single output DC supply. The on-board 12-turn temperature set
trimpot sets the desired temperature. Single turn trimpots control the proportional gain and
current limit. A four-position sensor select jumper applies the proper bias current for thermistors,
IC sensors or RTDs. All inputs and outputs are accessed via a single 14-pin header on the base.
These pins provide easy access for DC supply input, sensor, thermoelectric or resistive heaters,
external control and measurements with an external digital voltmeter. The rugged, compact
design can be used in many environments and has a 0° C to +60° C operating range. The
integral heatsink can be removed to mount the module to a system chassis.
\\Snap105913\SHARE1\Product Literature\Vigo\Wavelength PID1500.doc
10/15/2003
Accessories for PID1500 Cooler Controller
Evaluation PCB
Can be used with:
• PID1500 Temperature Controller
1
2-4
5-24
Quantity
Prices $100.00 $100.00 $100.00
+5V/8Amp PID1500 Power Supply
Can be used with:
• PID1500 Temperature Controller
1
2-4
5-24
Quantity
Prices $175.00 $162.00 $151.00
Cannot be used with any preamplifier
due to noise.
General Description
+5 V / 8 Amp Switching Power Supply (Do NOT use with preamps)
Size: 5.75" (L) x 2.875" (W) x 1.625 (H)
Input voltage range 100-240V
\\Snap105913\SHARE1\Product Literature\Vigo\Wavelength PID1500.doc
10/15/2003
Boston Electronics Corporation
91 Boylston Street, Brookline, Massachusetts 02445 USA
(800)347-5445 or (617)566-3821 fax (617)731-0935
www.boselec.com
[email protected]
STCC-04 Series Thermoelectric Cooler Controllers
The family of modern STCC-04 controllers has been designed for temperature control and
stabilization of IR detectors manufactured by VIGO System S.A. The following TE cooled detectors
are included: PVI-2TE, PV-2TE, PC-2TE and PCI-2TE mounted on heatsinks DR-1(B) or DR-10(B).
The STCC-04 family is characterized not only by a very good stabilization of the detector
temperature, but also by high watt-hour efficiency, low noise level, small overall dimensions and
small bulk. High temperature stability guarantees excellent performance of the detector
independently of the ambient conditions.
The STCC-04 family includes models for constant or adjustable working temperature of the
detector. Depending on model of the controller and detector, the temperature can be kept within
the range 233 K (-40 °C) to 278 K (+5 °C).
An optional built-in secondary power supply provides all voltages needed for VPAC- or VPDC-series
preamplifiers integrated in model DR-1 or DR-10 heatsinks with the detector. The particular
parameters of the power supply are optimized for the selected model of the preamplifier resulting
in the best working conditions of the whole set.
STCC-04 - PP - nT – type
(model specification system)
STCC-04 Product identifier
-PP
Type of built-in power supply:
00 - no power supply
05 - power supply ±5 V / ±250 mA
12 - power supply ±12 V / ±120 mA
15 - power supply ±15 V / ±100 mA
G1 - combined power supply (- 0.5 V, +4.5 V and +7 V) for VPAC-1000 preamplifier
-n
2 - two-stage cooler (standard)
3 - three stage cooler
-T
Type of thermistor:
A - TB06-22
B - BR14KA132J-A (only for certain types of IR detectors)
-type
Programmed temperature of IR detector:
P5 - 278 K (+5 °C)
30 - 243 K (-30 °C)
35 - 238 K (-35 °C)
40 - 233K (-40 °C)
RC - precisely adjusted within the range 233 to 278 K (-40 to +5 °C)
R4 - switched within the range 233 to 243 K (-40 to -30 °C)
Custom-set temperatures are also available.
IR Measuring Set
3.5.
Heatsinks for TE-Cooled Detectors
TE-cooled detectors are distributed in TO-8 packages. The package, which
also includes TE-cooler, should be mounted on a suitable heatsink. The
DR-1 heatsink developed and offered by our company provides optimal
detector cooling and stabilization of its temperature. The heatsink plays
also a role of the preamplifier’s housing. Such construction provides a
significant improving of screening and reducing influence of external noises
on the performance of the detection system. The DR-1 can be easily
attached to all typical blocks of optical measuring systems. The DR-10 type
of increased length has been designed for preamplifiers of bandwidth
50MHz – 250 MHz. When equipped with DRB-1 stand, the detecting unit
can be used on any flat surface and its vertical position can be easily
adjusted. The complete unit incorporating DR-1 or DR-10 heatsink and
DRB-1 stand is marked as DR-1B or DR-10B set respectively.
Heatsinks dedicated for detectors manufactured by VIGO System S.A.
Type of Detector
VPxx- 01i
VPxx- 03i
VPxx- 1i
VPxx- 5i
VPxx- 10i
VPxx- 20i
VPxx- 50i
VPxx- 100i
VPxx- 250i
P
Type of Heatsink
DR-1B
DR-1B
DR-1B
DR-1B
DR-1B
DR-1B
DR-10B
DR-10B
DR-10B
P
Fig.9
DR-1B Unit (front view)
Fig.7. Detector in DR-1 Housing
on DRB-1 Stand
IR Measuring Set
Fig.10
DR-1B Unit (rear view)
Fig.8. DRB-1 Stand
P
Fig.13
Detector in DR-1 Housing
(Front View)
Fig.11. Detector in DR-10 Housing)
Fig.12. DRB-1 Stand
Fig.14
Detector in DR-1 Housing
(Rear View)
IR Measuring Set
P
Fig.15. Dimensions of DR-1B Housing
IR Measuring Set
P
Fig.16. Dimensions of DR-10B Housing
IR Measuring Set
P
Fig.17 Pin Assignment of 9-pin Canon for DR-1 & DR-10 Housing
IR Measuring Set
DR-1 Housing. Examples of Application
P
Fig.19. Preamplifier and Detector in DR-1B Housing mounted on Optical
Bench
Fig.18. Preamplifier and Detector integrated inside DR-1 Housing mounted
on DRB-1 Stand
3.6.
IR Measuring Set
IR Measuring Set
4. VPAC and VPDC Preamplifiers
VPAC-xx and VPDC-xx preamplifiers take full advantage of all detectors’
parameters and provide the best protection against ESD, EMI and human
mistakes. The input stages of all VPAC-xx and VPDC-xx preamplifiers
have been built with application of ultra low noise transistors or integrated
circuits. They have been optimally configured and biased to achieve
maximal S/N ratio, keeping the remaining parameters (gain, bandwidth,
maximal output signal and others) within the required limits.
4.1. Noise in Amplifiers
To amplify a small signal deriving from IR detector to the value allowing its
further processing, a multi-stage preamplifier is usually needed. A resultant
noise performance of the amplifier (preamplifier) depends in practice on the
noise performance of the first stage. The noise performance is usually
expressed as the noise voltage or noise current referred to its input (for
voltage or current mode amps respectively). Input stages of VPAC-xx VPDC-xx series have been designed towards achieving maximal s/n ratio
for a specific type of detector, taking full advantage of its performance.
4.2. Technical Data
VPAC-xx series presents AC preamplifiers designed for use with
photovoltaic and photoconductive detectors. VPDC-xx series – DC
preamplifiers cope with photovoltaic detectors. Depending on what type of
IR detector is to be used, we offer specific version of a suitable
preamplifier:
VPAC-xx-i and VPDC-xx-i preamplifiers are mounted inside DR-1 or
DR-10 heatsink and designated for use with TE-cooled detectors. In this
case a measuring set must be equipped with STCC or CTTC controller of
the TE cooler. Building the preamplifier into the heatsink enabled radical
shortening the connections between the detector and the input stage what
resulted in significant lowering of EMI level.
The output signal of the preamplifier is available on BNC connector but the
remaining signals (supply voltages and driving signals for the TE-cooler’s
controller) come out via 9-pin Canon connector
For some applications VPAC-xx-s and VPDC-xx-s standing alone
preamplifiers are useful. They are supplied in screened housings equipped
P
IR Measuring Set
with BNC connectors for the input and output signals and 9-pin Canon
connectors for the power supply.
All preamplifiers require supplying devices of very low noise level at the
output (like accumulators or especially designed well-filtered power
supplies). For standing alone preamplifiers our PPS Ultra Low Noise
Power Supply is recommended.
P
IR Measuring Set
Table 4. Technical Specification of VPAC and VPDC Preamplifiers
VPAC
Series
Bandwidth
VPAC
-01
VPAC
-03
VPAC
-1
VPAC
-5
VPAC
-10
VPAC
-20
VPAC
-50
VPAC
-100
VPAC-250
Low Freq.
High Freq.
10Hz
100 kHz
10Hz
300 kHz
10Hz
1 MHz
10Hz
5 MHz
10Hz
10 MHz
10Hz
20 MHz
1 kHz
50 MHz
1 kHz
100MHz
1 kHz
250MHz
100
100
100
24
10
5
4
2
5
14
14
10
4
4
4
3
3
1
Trans-imp.
[kŸ@
Output
voltage
[Vpp]
Input
noise
current
[pA/Hz1/2]
Power
supply
Output
impedance
VPDC
Series
Bandwidth
In=1200/Rd
Rd – detector’s resistance
in Ÿ
In=3000/Rd
In=2000/Rd
In=3000/Rd
± 15V/25mA
± 15V/40mA
± 12V/40mA
± 12V/
60mA
50Ω
VPDC
-01
VPDC
-03
VPDC
-1
VPDC
-5
VPDC
-10
VPDC
-20
VPDC
-50
VPDC
-100
VPDC-250
0 -100
KHz
0 -300
KHz
0-1
MHz
0-5
MHz
0 - 10
MHz
0 - 20
MHz
0 - 50
MHz
0 - 100
MHz
0 - 250
MHz
When the specified above parameters do not meet your requirements,
get in touch with us please.
P
IR Measuring Set
4.2.1.
Appearance and Dimensions
Fig.21. Standing Alone Preamplifier of
VPxC-xx-s Series
Fig.22.
Standing Alone Preamplifier of
VPxC-xx-s Series with R005 Detector
Fig.23. Dimensions of Standing Alone Housing
P
VPAC 1000
WIDE BANDWIDTH CURRENT PREAMPLIFIER
FEATURES
Low noise and wide bandwidth transimpedance
preamplifier (10kHz to 1 GHz, in dependence on
detector capacitance). The devices enforces DC
bias that is required for optimized operation of a
given type of infrared detector. Integrated with
detectors packages are available.
SPECIFICATION
PARAMETER
VALUE
Bandwidth (-3dB)
10kHz- 1000MHz @50Ω, Cdet ≤1pF
Transimpedance
7,5*103 V/A
Output
± 0,8 V @ RL=50Ω
Input noise density
≤ 5,9pA @ Rdet =2kΩ||3pF fo=10kHz
Output impedance
50Ω
Supply voltage
From dedicated power supply *
Supply current
+55 mA -20 mA
* for cooled detectors preamplifier is supplied from power supply built in thermoelectric cooler controller model STCC-04
for uncooled detectors preamplifier is supplied from dedicated power supply model PPS
PERFORMANCE CHARACTERISTICS*
* performance measured at Rdet =1kΩ||3pF
DIMENSIONS
The detector is followed by the high performance dedicated preamplifier specially designed to obtain the
best performance from the VIGO System's detector. Each preamplifier is carefully optimized to work with
particular type of detector. The preamplifier ensures stable work in all conditions and the highest signal to
noise ratio of the whole system. Application of the completely new housings integrated with heatsink
results in effective cooling of the detector, provides effective EMI shielding and is more convenient for the
customer (easy fastening to other equipment).
See also our offer on preamplifiers: CLDC, CLAC series and STCC-04 thermocooler controller.
HEADQUARTERS
3 Swietlikow Str.
01-389 Warsaw
POLAND
SALES OFFICE
11a Wyki Str.
01-318 Warsaw
POLAND
tel.: +48 22 666 01 45
fax: +48 22 666 01 59
http://www.vigo.com.pl
tel.: +48 22 666 14 10
fax: +48 22 665 21 55
e-mail: [email protected]
VIGO System S.A.
Application Notes
Packages, Windows and Pin Layout
Introduction
Devices are typically delivered in five types of packages:
TO-8, BNC-based, TO-39, PEM with SMA connector and
quadrant with SMA connectors .
The BNC and the TO-39 packages are used for uncooled
PV and PC devices. The TO-8 package is used for TE cooled
devices. All TE-cooled and PEM detectors are provided with
a window. We offer windows optimized for different spectral
bands: BaF2, ZnSe, CdTe, CaF2, sapphire, AR-coated Si and
AR-coated Ge.
TO-8 Packages
Description
The TO-8-based packages are used for thermoelectrically
cooled devices (PC-2TE, PCI-2TE, PV-2TE and PVI-2TE).
The packages are backfilled with inert heavy gases of the
low thermal conductivity (Kr/Xe mixtures). Water vapour
condensation is prevented by careful package sealing and
water absorbers.
BaF2 windows are used as a standard.
Dimensions in millimeters
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[email protected]
VIGO System S.A.
Packages with BNC Connectors
TO-39-Style Packages
Description
Description:
The specialized BNC-based packages are used for
uncooled room temperature devices (R005, MPC, PC, PCI,
PV, PVI).
Standard devices are delivered without a window.
Dimensions in millimeters.
The TO-39-based packages are used for uncooled room
temperature devices (R005, MPC, PC, PCI, PV, PVI).
Standard devices are delivered without a window.
Dimensions in millimeters
 13
Detector
3.2
 4-6
5.08
9.2
Detector
1.9
27.7
8.4
http://www.vigo.com.pl
[email protected]
VIGO System S.A.
PEM Specialized Packages
Quadrant Packages
Description
Description
The photoelectromagnetic detectors (PEMI-L, PEM-L) are
typically mounted in the specialized packages with SMA
connectors, designed for broadband applications. A magnetic
circuit is incorporated into the package.
The 10.6 µm AR-coated germanium window is supplied as
a standard.
Dimensions in millimeters
Devices are typically mounted in specially designed
packages, supplied with the SMA connectors, suitable for
wide band applications. Those packages are used in PCQL
devices.
Standard devices are delivered without a window.
Dimensions in millimeters
SMA
Connector
+ 0.00
 16+0.00
- 0.10
30
40
23
5.5
10
30
 13
 24
http://www.vigo.com.pl
+0.30
6.0 - 0.00
13- 0.10
Active
Elements
Detector
60
20
25
34
40
[email protected]
VIGO System S.A.
Custom Engineering
VIGO System S.A is highly responsible engineering driven
company. 25 years of experience have given us opportunity
to provide the most sophisticated and extensive Custom
Engineering capabilities in the field of infrared technology.
We have realized that the most of the IR systems need some
unique features of devices. We treat every customer as a
partner and we offer solutions according to partner's needs.
At any stage of the development process our Custom
Engineering staff is ready for cooperation.
To help our valuable customers we use sophisticated
epitaxial techniques, advanced material processing and
microoptic systems. Our engineers are experts in designing
and manufacturing a custom IR system, from a epitaxial layer
to ultrawide bandwidth electronics. Our service might
significantly shorten the initial phase of the customer product
development.
Our expertise is regularly called upon by our customers for
specialized devices for OEM product development and for
engineering prototype development.
Our offer includes state-of-art uncooled devices:
– PC, PV and PEM detectors optimised for any wavelength
within 1.5÷16µm range
– Narrow and wide bandwidth devices
– Multicolor devices
Quadrant Detector in a Custom Package
Custom packages and various detector formats are
available upon request.
Custom detector formats include:
– Specially shaped single element detectors
– Linear and bilinear arrays
– Small 2-D arrays (e.g. quadrants)
Upon request, the custom detectors are integrated with
supporting electronics:
– Preamplifiers
– TE-coolers
– Coolers controllers
– Temperature sensors
We can provide any preamplifiers up to 1 GHz
bandwidth.
Standard Packages
VIGO System S.A staff is ready for any kind of
cooperation with production departments, R&D and scientific
groups all around the world.
Multielement Linear Array
New Epitaxial Production System
http://www.vigo.com.pl
[email protected]
VIGO System S.A.
TE cooling
Cooling reduces noise, increases responsivity and in some
devices improves high frequency response.
The devices with two stage TE coolers (Top=230K) are
available as a standard. Three and four stage coolers
(Top=210K for 3TE, Top=190K for 4TE) are available upon
request.
Thermoelectric Cooler
TE cooler (TEC) is biased with the DC power. The coolers
are characterized by:
Optimum current: Iopt
Current resulting the highest temperature difference at the
specified conditions.
Maximum current: Imax
The maximal permissible value. The higher currents may
damage the cooler. To ensure lasting operation it is
recommended to supply the cooler with <0.8·Imax.
Temperature Sensor
The Built-in thermistor serves as a sensor of the detector’s
temperature. The maximal power dissipated by the thermistor
should not exceed 0.2 mW, therefor its bias must be carefully
chosen. To provide the accurate temperature measurement,
this power should not exceed 0.03 mW. TE-cooled detectors
are equipped with TB06-22 or BR14KA132J-A thermistors.
Resistance – temperature characteristics of the sensors are
shown in Tab. 4 and Tab. 5, respectively.
TEC Controllers
The TEC controllers are available upon request. See
the Standard thermoelectric cooler controllers STCC-04 data
sheet for more details.
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Table 4. Resistance vs temperature for TB06-22 Thermistor
Tolerance
Tolerance
T
R
of R
T
R
of R
[K]
[K]
[k]
[k]
[k]
[k]
224
47.34
2.37
273
4.564
0.228
226
42.18
2.11
275
4.223
0.211
228
37.66
1.88
277
3.911
0.196
230
33.69
1.68
279
3.627
0.181
232
30.20
1.51
281
3.367
0.168
234
27.12
1.36
283
3.128
0.156
236
24.40
1.22
285
2.910
0.145
238
21.99
1.10
287
2.709
0.135
240
19.86
0.99
289
2.525
0.126
242
17.96
0.90
291
2.356
0.118
244
16.27
0.81
293
2.200
0.110
246
14.76
0.74
295
2.056
0.103
248
13.41
0.67
297
1.924
0.096
250
12.21
0.61
299
1.801
0.090
252
11.13
0.56
301
1.688
0.084
254
10.16
0.51
303
1.584
0.079
256
9.28
0.46
305
1.487
0.074
258
8.5
0.42
307
1.397
0.070
260
7.79
0.39
309
1.313
0.066
262
7.15
0.36
311
1.236
0.062
264
6.57
0.33
313
1.164
0.058
266
6.05
0.30
315
1.097
0.055
267
5.8
0.290
317
1.097
0.055
269
5.35
0.268
319
0.977
0.049
271
4.94
0.247
321
0.923
0.046
Table 5. Resistance vs Temperature for BR14KA132J-A
Thermistor.
T
[K]
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
R
[k]
32.43
30.69
29.06
27.52
26.08
24.71
23.43
22.23
21.09
20.02
19.01
18.06
17.16
16.31
15.51
14.76
14.04
13.37
12.73
12.12
11.55
11.01
10.5
10.01
9.55
T
[K]
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
R
[k]
9.12
8.7
8.31
7.94
7.59
7.25
6.94
6.63
6.35
6.07
5.81
5.57
5.33
5.11
4.9
4.69
4.5
4.32
4.14
3.97
3.81
3.66
3.52
3.38
3.25
T
[K]
R
[k]
T
[K]
R
[k]
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
3.11
3.00
2.89
2.78
2.67
2.57
2.47
2.38
2.29
2.21
2.13
2.05
1.98
1.91
1.84
1.77
1.71
1.65
1.59
1.54
1.49
1.43
1.39
1.34
1.30
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
1.25
1.20
1.17
1.13
1.01
1.06
1.03
0.99
0.96
0.93
0.90
0.87
0.85
0.82
0.76
0.77
0.75
0.75
0.70
0.68
0.66
0.64
0.62
0.61
0.59
[email protected]
VIGO System S.A.
Mechanical Accessories
Beam Power Limitations
For devices without immersion lenses continuous work
incident beam power must not exceed 100 W/cm3 and pulses
shorter then 1 µs must not exceed 1 MW/cm3.
For optically immersed devices continuous work incident
beam power must not exceed 20 W/cm3 and pulses shorter
then 1 µs must not exceed 10 kW/cm3.
Saturation power density depend on a type of the detector
and can be provided upon request.
Shaping Leads
DR-10B Set: Base (DRB-1) and Heat Sink (DR-10) for
Wide-Band Preamplifiers (>50 Mhz)
Avoid bending the leads at a distance less then 2 mm from
a base of the package not to damage the glass seals. When
shaping the leads, do not exceed the following limits:
– Maximal mechanical tension – 0.5 kg for 5 sec
– Maximum two right angle bends and three twists at the
distance minimum 6 mm from the base of the package
When shaping the leads of the detector, short the leads of
the detecting element with a special jumper.
Soldering Leads
IR Detectors can be easily damaged by excessive heat.
Special care should be taken when soldering the leads. Usage
of heat sinks is highly recommended. Tweezers can be used
for this purpose; clamp a lead being soldered at a place
between the soldering iron and the base of the case. To avoid
destructive influence of ESD and other accidental voltages
(deriving for example from a non-grounded soldering iron)
(e.g. on PVI-2TE detectors) all rules for handling LSI
integrated circuits should be applied to IR detectors too.
Cleaning Window
DR-1B Set: Base (DRB-1) and Heat Sink (DR-1)
Precautions for Use, Warranty
Storage
The following conditions should be fulfilled for the safe
and reliable operation of detectors:
– Storage temperature: -10ºC ÷ +50ºC
– Avoiding ESD; detectors are very sensitive to
electrostatic discharges, therefore they should be stored
having detection element’s leads shorted by a special
jumper.
Handling
Windows of some detectors are made of very soft materials
like ZnSe or BaF2. Particular attention should be paid to not
scratch a surface of the window when some sharp tools are
being used. A damaged window may entirely degrade the
detector’s performance. Excessive mechanical stress applied
to the package itself or to a device containing the package,
may result in permanent damage of the latter.
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Keep the window clean. Use a soft cotton cloth damped
with isopropyl alcohol and wipe off the surface gently if
necessary.
Mechanical Shocks
The Peltier elements may be damaged by the excessive
mechanical shocks and vibrations. Great care is
recommended during all manipulations (including normal
exploitation) to avoid the mentioned hazards. Drop impacts
against a hard base may be particularly dangerous.
Heat Sinking
The base of the package must be firmly attached to the
heatsink. This can be achieved either by using a thin layer
(<5 µm) of heat conductive epoxy glue or silicone grease
between the mentioned elements. The latter requires carefully
made clamping of the elements to assure possibly thin layer
of the grease.
Warranty
VIGO System S.A. issues a warranty for the material and
the workmanship of our products under normal operating
conditions for the period of one year from a date of the
delivery. Exceptional operating conditions, damage due to
careless handling and misapplication may void the warranty.
[email protected]
[email protected]
Boston Electronics Corporation
www.boselec.com
DC to 10 MHz Bandwidth, 2 to 11 m LAB Bench Detector
HEADQUARTERS
ZLHWOLNRZ6WU-389 Warsaw
tel.: +48 22 666 01 45
fax: +48 22 666 01 59
http://www.vigo.com.pl
SALES OFFICE
11a Wyki Str., 01-318 Warsaw
tel.: +48 22 666 14 06, 666 14 10
fax: +48 22 665 21 55
e-mail: [email protected]
24 K
5 MHz
100K
1 MHz
10 MHz
10 K
10 K/ RD
481-10
5
1.0
+/-12 to 15 @ 18
24 K/ RD
481-5
100 K/ RD
481-1
50 MHz
4K
4 K/ RD
481-50
2x2x1
$795
20 MHz
5K
5 K/ RD
481-20
100 MHz
1
1.8
+/-6 @ 25
2K
2 K/ RD
481-100
200 MHz
1K
1 K/ RD
481-200
$795
20 MHz
34 dB
080/34
480
+/-12 to 15 @ 40
$895
5
50 µV RMS,
wideband
+6 to 8 @ 30
500
MHz
40 dB
493A/40
--
491 Video
Line Driver
X2
--
5
-100 MHz
491 Video
Line Driver
X2
$595
1.1 x 0.9 x 2.3
$795
$595
1.1 x 0.9 x 2.3
+/-5 to +/-12 @ 20
5
477AG
gain stage
Variable,
X5 to 200
10+ MHz
$795
100 MHz
4
-+/- 5 to +/- 12 @ 20
10+ MHz
5
477AG
gain stage
Variable
X5 to 200
Input 10K
(800)347-5445 or (617)566-3821 * fax (617)731-0935 * [email protected] * www.boselec.com
Boston Electronics Corporation, 91 Boylston Street, Brookline MA 02445
6. Use the model 491 line driver when output cable is longer than 6 feet.
7. Operating temperature range -55 to +85 C
8. Prices current as of 6 July 2004. Specifications & prices subject to
change without notice.
2x2x1
20 dB
493A
1KHz
100 MHz
500+ MHz
26 dB
490
3
2.8 dB nominal
50 MHz
32 dB
1. We can tailor preamp bandwidth to customer requirements.
2. All units have BNC Connectors on Input and Output.
3. Output impedance is 50 ohms for all except model 491 which may be 2
ohm or 75 ohm output instead of 50 ohm on special order.
4. Cable from detector to amplifier should be less than 3 feet.
5. Use model 477AG gain stage on amp output if extra output voltage
needed.
Notes:
-12 @ 10 to 20
10 Hz
3MHz
10 MHz
40 dB
Input (Volts @ milliAmps
quiescent)
Size (inches)
Price
1 MHz
Bandwidth from:
To:
40 dB
070/40
4
1dB nominal
50 dB
Gain
060/40
Output (volts, max, p-p)
Noise figure
050/50
Model
AC-Coupled Preamps for Photovoltaic or Photoconductive HgCdZnTe Detectors
Gain [RD is detector
resistance]
Transimpedance Factor
(Vout/Iin)
Bandwidth (DC to…)
Output (volts, max, p-p)
Noise (n V/Hz1/2)
Input (Volts @ milliAmps
quiescent)
Size (inches)
Price
Model
Preamps: achieve detector-noise-limited performance
DC-Coupled Preamps for Photovoltaic HgCdZnTe Detectors
Preamps: achieve detector-noise-limited performance