Liu Zhiguo, Ba Enxu, Lu Kecheng, Wang Lijun, Liu Lixin. Measuring noise of He-Ne lasers[J]. Chinese Journal of Lasers, 1987, 14(1): 61
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A method is reported for continuously measuring laser amplitude noise. The bandwidth is 2.0 Hz-lMHz. The minimum measurable noise power is about 0.2μW.