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Optical analyzer and method for reducing relative intensity noise in interferometric optical measurements
Optical analyzer and method for reducing relative intensity noise in interferometric optical measurements
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机译:光学分析仪和用于减少干涉光学测量中的相对强度噪声的方法
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摘要
A heterodyne optical network analyzer (100) and method for device characterization reduces the effect of relative intensity noise (RIN) in interferometric optical measurements by subtracting the measured intensities of first (I1) and second (I2) interference signals derived from an optical interferometer. The first and second interference signals are produced by combining a first lightwave transmitted to an optical device (102) being characterized with a second lightwave, which is a delayed version of the first lightwave. The first and second lightwaves are derived by splitting an input lightwave having a continuously swept optical frequency generated by a light source, such as a continuously tunable laser (108).
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机译:外差光网络分析仪(100)和用于设备表征的方法,通过减去第一(I 1 Sub>)和第二(I I sub>)的测量强度来减少干涉光学测量中的相对强度噪声(RIN)的影响来自光学干涉仪的Sub> 2 Sub>)干涉信号。通过将传输到表征为光学器件(102)的第一光波与第二光波组合来产生第一和第二干涉信号,第二光波是第一光波的延迟版本。通过将具有由诸如连续可调激光器(108)之类的光源产生的连续扫描光频率的输入光波分开,来导出第一和第二光波。
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