R&D (Speed meter)
YoheiNishino - 22:11, Tuesday 15 October 2024 (3791)
Transfer function measurement of the speed meter

Nishino,

I measured transfer functions of the speed and position meter. The PCC is not locked but just scan the PCM to minimize and maximize the transmittance light which is a consequence of interference between the first and second circulation light. 

The result is shown in the figure. Blue is the position state and red is speed state. Their ratio is fitted with a function with a cavity loss of 500 ppm. 

Images attached to this report
3791_20241015151132_tfs.png