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Method for noise cancellation by spectral flattening of laser output in a multi-line-laser instrument
Method for noise cancellation by spectral flattening of laser output in a multi-line-laser instrument
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机译:在多线激光仪器中通过激光输出的光谱展平来消除噪声的方法
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摘要
An improved method of subtracting laser amplitude fluctuations from a desired signal in a multi-line laser system (10) and a detection system (50, 70) having improved noise cancellation are provided. This invention reduces the noise contribution from laser amplitude fluctuations by matching the spectral dependence of the light seen at a monitor of the laser output to the spectral dependence of a desired signal. This spectral matching results in an improved correction of the laser power in a desired signal.
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