Diffraction property low-light test system and method of acousto-optic tunable filter (AOTF)
A test system and filter technology, applied in the field of optical measurement, can solve the problems of taking a long time, meeting the limitations of application requirements, unable to reflect the diffraction performance of AOTF, etc., to achieve a wide wavelength coverage, intuitive test results, and improve the test The effect of accuracy
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[0028] The following is based on Figure 5 A preferred embodiment of the present invention is given to illustrate the structural features and implementation methods of the present invention, but not to limit the scope of the present invention.
[0029] AOTF diffraction performance weak light test system includes the following parts:
[0030] 1) Monochromatic light source system 1: In this implementation plan, the HORIBAiHR320 three-grating monochromator produced by YOBINYVON Company is selected, and the LSH-T250 bromine tungsten lamp and the LPS250 high-precision steady-flow source are used as a set.
[0031] 2) Diaphragm hole 2: Daheng Optoelectronics GCM-57 variable diaphragm is selected for this implementation.
[0032] 3) Optical signal modulation system 3: This embodiment adopts the C-995 optical chopper produced by Terahertz Technologies, and the lock-in amplifier produced by Nanjing Hongbin Weak Signal Detection Co., Ltd.
[0033] 4) collimating mirror 4, converging m...
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