On-line testing method and device for integrated optical modulator for optic fiber gyroscope
A technology of integrated optics and fiber optic gyroscope, applied in the direction of testing optical performance, etc., can solve the problem of not being able to reflect the stability characteristics of half-wave voltage, and achieve the effect of increasing dynamic test parameters, comprehensive test parameters, and enhanced contrast
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[0015] Such as figure 1 As shown, the test system of the present invention consists of a high-precision stable light source 1, a fiber interference optical path (fiber ring) 2, a photodetector and a preamplifier 3, a modem control part 4, a high-precision square wave and step wave generator, and Potentiometer 5, the output of the high-precision stable light source 1 is connected with the input end of the tested Y-waveguide modulator 6 to provide light waves for the entire test system; the detector and preamplifier 3 convert the optical interference signal of the entire test system into The electrical signal is sent to the oscilloscope 7 through the modulation and demodulation control 4 parts; the high-precision square wave and waveform generator and the potentiometer 5 provide the test waveform for the tested Y-waveguide modulator 6 and adjust the amplitude. The phase adjustment of the device under test responds.
[0016] Such as figure 2 As shown, the test process of the presen...
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