NAOJ GW Elog Logbook 3.2
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YuhangZhao - 13:07, Thursday 25 July 2019 (1514)
Comment to Investigation of squeezing spectrum (Click here to view original report: 1504)
Here I attach the measurement of SHG and GRMC transmission noise spectrum.
The difference is I measured the noise spectrum of SHG transmission at a wrong place. (Actually, I was measuring the locking noise of SHG in the entry 1501)
However, we really have a worse GRMC transmission noise. Especially, there are peaks from the 4-10kHz region. They are responsible for the region where we have more noise in the squeezing measurement.
I will try to understand why there is a factor between the old and new measurement.
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