Optical Nonlinearity Estimation Using Increase in
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专利名称：Optical Nonlinearity Estimation Using
Increase in Harmonic Content With Increase
in Intensity
发明人：David Stanley SMITH,Paul MAURER
申请号：US15081244
申请日：20160325
公开号：US20170276548A1
公开日：
20170928
专利内容由知识产权出版社提供
摘要：A method of estimating non-linearity in a response of an optical detector comprises emitting optical radiation at different intensities. The method includes, at each intensity: amplitude modulating the emitted optical radiation at a modulating frequency to produce amplitude modulated optical radiation; detecting the amplitude modulated optical radiation with the optical detector to produce a detected waveform; and generating a Fourier transform of the detected waveform that includes a fundamental frequency equal to the modulating frequency and harmonics thereof. The method further includes estimating the non-linearity in the response of the optical detector based on a change in an amplitude of a second harmonic of the fundamental frequency relative to an amplitude of the fundamental frequency across the Fourier transforms corresponding to the different intensities.
申请人：Harris Corporation
地址：Melbourne FL US
国籍：US
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