PT-9610
https://www.gigahertz-optik.de/en-us/product/PT-9610
Product tags: Laser
Gigahertz-Optik GmbH
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Description
Measurement of noise proportion in Laser
power (radiant power)
In most laser power measurement applications radiant laser power is the
one and only qualifying parameter. However in a few specific applications
the radiant power noise characteristic is of interest as well. Typically in
these applications the detector bandwidth cannot be limited to reduce the
signal noise through long integration times. One common example of this
involves laser imaging scanners. The very high scanning frequency of these
systems requires very fast detection systems without bandwidth limitation.
PT-9610 optometer with detector
Because of this the noise level and noise characteristic of the laser, used as
a light source, influences the signal to noise ratio and therefore the
imaging resolution.
Six measurement modes for noise evaluation
In 1996 Gigahertz-Optik developed the PT-9610 in close cooperation with a
main manufacturer of laser imaging scanners to design a simple to use
mobile meter for production and field service use. Eventually the PT-9610
became a reference standard for laser manufacturers supplying lasers for
this type of application. The PT-9610 operates in two basic modes. Laser
power is measured in CW mode. Plus power oscillation about the mean
value (modulation component) is measured and can be analyzed in six
different ways:
PD-2D Laser Power Detector with
Calibration Data Connector
r.m.s. wide band value - up to 1 MHz
r.m.s low frequency value - 830Hz (-3dB), 480 Hz (-1.5dB)
r.m.s. high frequency value - 280Hz (-3dB), 480 Hz (-1.5dB)
positive peak value
negative peak value
peak to peak value
Low profile detector head for measurement in tight
spaces
The PT-9610’s PD-2T laser power detector is low profile only 8mm high
PD-2D Typical Spectral Responsivity
with a removable grip for easy placement into tight spaces like inside
equipment. Its unique design which includes a miniature integrating
sphere made from synthetic ODM98 coating and fast PIN silicon
photodiode provide a detection range of up to 120 mW and 1 MHz.
Traceable calibration
Radiant power sensitivity calibration is provided from 350 nm to 650 nm in
10 nm steps and at 351 nm, 364 nm, 405 nm, 426 nm, 441 nm, 458 nm,
473 nm, 476 nm, 488 nm, 496 nm, 514 nm, 532 nm, 543 nm, 568 nm, 594
nm, 612 nm, 633 nm and 647 nm. The calibration data is stored in the
detector calibration data connector.
Gigahertz-Optik GmbH
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Specifications
Product
ADC resolution (CW + RMS)
0.025 % of the full scale range
ADC resolution (Peak)
0.07 % of the full scale value (R1/WB)
0.01 % of the full scale value (R1/LF)
0.01 % of the full scale value (R2/WB)
0.005 % of the full scale value (R2/WB)
Lower cut-off frequency for CW
measurement
10 Hz
Cut-off frequency in (-3 dB) mode
500 kHz (R1), 1 MHz (R2 + R3)
Low pass filter in LF mode
830 Hz (-3 dB), 480 Hz (-1.5 dB)
High pass filter in HF mode
280 Hz (-3 dB), 480 Hz (-1.5 dB)
Calibration data
stored in external EEPROM of detector plug
Measuring ranges
R1, R2 and R3 with manual or automatic range switching (menu function)
Operating panel
keypad
Display
LCD with switchable background illumination
Signal input
9-pin SUB-D connector
Analog output
BNC socket
Three bandwidth selectors
enable distinction between lowfrequency band modulation (e.g.
line frequency) and highfrequency band. The following
table summarizes all modes
mode
RMS (effective value)
selector
WB
(wide band)
LF
(low frequency band)
HF
(High frequency band)
Peak
(peak value)
+
(positive)
pp
(peak-to-peak)
(negative)
description
The broad band power
modulation is measured up to the
limiting frequency of the
preamplifier. The root mean
square is calculated.
The low frequency power
modulation is measured and the
root mean square is calculated.
The high frequency power
modulation is measured and the
root mean square is calculated.
The peak value, by which the
power rises above average power
is sampled and displayed as offset
to CW level.
The peak to peak-interval of
power level is sampled and
displayed.
The peak value, by which the
power sinks below average power
is sampled and displayed as offset
to CW level.
Miscellaneous
Power supply
Rechargeable battery or AC operation using external power supply unit (7.3 V/350 mA)
Dimensions
Approx. 20 cm x 10 cm x 4.5 cm (8 in x 4 in x 1.8 in) (L x W x H)
Weight
Approx. 500 g (1.1 lb) with batteries
CE conformity
compatible
RoHS
compatible
Warranty
12 month
Gigahertz-Optik GmbH
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Options
PT-9610 with PD1 Specifications
RMS WB
HF
LF
Peak-Peak WB
Max. Limits (637nm)
CW
Resolution
R1
0.5 µW
0.5 µW
0.05 µW
2.5 µW
R2
1.5 µW
1.5 µW
0.3 µW
4 µW
900 µW
0.1 µW
9 mW
1 µW
Purchasing information
Article-Nr
Modell
Description
Product
15298034
PT-9610-PD-2T
Instrument with battery and manual plus PD-2T detector head
Calibration
15300453
K-PD-2T-SD
Calibration of the spectral radiant power sensitivity A/W from 350
nm to 650 nm in 10 nm steps and at 351 nm, 364 nm, 405 nm, 426
nm, 441 nm, 458 nm, 473 nm, 476 nm, 488 nm, 496 nm, 514 nm,
532 nm, 543 nm, 568 nm, 594 nm, 612 nm, 633 nm and 64 7nm with
calibration certificate.
Accessories
15295228
Gigahertz-Optik GmbH
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BHO-01
Hard case
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