Calibration method and calibration system of light source stroboscopic tester based on internal modulation light source method
A calibration method and technology of calibration system, applied in the field of calibration system, can solve problems such as low efficiency and inaccurate calibration of light source stroboscopic tester, and achieve the effects of accurate measurement, small signal rise time and good monochromaticity
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Embodiment 1
[0030] Such as figure 1 Shown, a kind of calibration method of the light source stroboscope tester based on internal modulation light source method, described calibration method comprises the following steps:
[0031] S1: Generate a stable frequency reference signal;
[0032] S2: Select different output waveform signals according to different frequency reference signals, and internally modulate the laser light source and control the temperature of the laser light source through the controller;
[0033] S3: Pass the strobe light signal generated by the laser light source through internal modulation through the optical isolator, in order to reduce the disturbance of optical power;
[0034] S4: Amplify the optical signal beam output through the optical isolator, and output it to the reference detector. The reference detector performs photoelectric conversion on the received optical signal and outputs it to the frequency meter, and at the same time, the frequency reference signal...
Embodiment 2
[0046] This embodiment also provides a calibration method for a light source stroboscopic tester based on the internal modulation light source method. The calibration method described in this embodiment is similar to the calibration method described in Embodiment 1, and an oscilloscope is mainly used to replace the frequency meter. , that is to use an oscilloscope to measure the optical signal, display the value, and write down the value. The oscilloscope can observe the waveform curves of various signal amplitudes changing with time, and can measure the frequency, phase difference, and modulation of the stroboscopic light signal. Amplitude and so on signal.
Embodiment 3
[0048] Based on the calibration method described in Embodiment 1, this embodiment provides a calibration system for a light source stroboscopic tester based on the internal modulation light source method. The system includes an atomic frequency standard instrument, an arbitrary waveform generator, a laser diode control Device, laser diode, optical isolator, beam expander, reference detector, frequency counter, light source strobe tester to be calibrated;
[0049]The atomic frequency standard instrument provides stable frequency reference signals for the arbitrary waveform generator and the frequency meter respectively; when performing calibration, the atomic frequency standard instrument is turned on to lock and stabilize, and the atomic frequency standard is the arbitrary waveform generator, frequency The meter provides a frequency reference signal and locks on.
[0050] The arbitrary waveform generator selects different output waveform signals according to different frequenc...
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