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IOO (Laser Bench)
yutaro.enomoto - 15:19 Wednesday 19 April 2017 (2696) Print this report
bKAGRA PSL (installation of a broadband EOM)

[Kokeyama, Enomoto]

We installed a broadband EOM, which is supposed to be used as a frequency actuator until the high power laser unit comes, just before another EOM for PMC locking.
Transmissivity of the broadband EOM was as high as 99.5%.

Current beam profile is shown in the attached figure; two EOMs are on the path.
The beam spot radius at the waist in x direction is a little bit bigger than the designed value, but this deviation is probably acceptable.

Images attached to this report
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