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'''Intensity Noise''' [[attachment:IntensityNoise.txt]] ---- |
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'''Intensity Noise''' [[attachment:IntensityNoise.txt]] |
Intensity Noise
- LaserのCurrent modulationを駆動して強度変調を生成。もしかしたら周波数も振っているかもしれないが、これはinlineで安定化されることを期待。
- 強度雑音はMC Endの透過光で取得。DC電圧は0.463V。10Hz-10kHzの強度雑音は1e-6 ~ 1e-7 1/Hz。
- 干渉計のfeedbackへの伝達関数を測定し、強度雑音の寄与を推定。現在の感度への影響は無いようである。
