Thermal lensing in the VIRGO mirrors
Large amounts of laser power are stored in the VIRGO Fabry-Perot cavities. This causes
the mirrors to heat up and deform limiting the operation of the interferometer.
A finite element analysis of the input mirror
has been carried out. This dynamical model
yields the temperature distribution in the
mirror, the eigenmodes and the variation of
the optical pathlength.
Input mirror
Power recycler
Contact information:
S. van der Putten
[email protected]
http:://www.nikhef.nl/
http:://www.virgo.infn.it/
Incoming
beam
Fabry-Perot cavity