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Opto-mechanical frequency shifting of scattered light

机译:散射光的光机械频移

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摘要

Light being scattered back from external surfaces or optical components can affect the sensitivity of optical measurement systems such as interferometers. By modulating the optical path length in front of a critical optical component the noise contributions due to the scattered light can be shifted out of the frequency band of interest. An opto-mechanical phase shifter has been designed for this purpose and noise reduction has been demonstrated.
机译:从外表面或光学组件散射回的光会影响光学测量系统(例如干涉仪)的灵敏度。通过调制关键光学组件前面的光程长度,可以将由于散射光引起的噪声贡献移出感兴趣的频带。为此设计了一种光机械移相器,并证明了降低噪声的能力。

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