Optoelectronic feedback-based short-time delay laser linewidth measurement system and measurement method thereof
A photoelectric feedback and laser technology, applied in the field of optoelectronics, can solve problems such as high cost, large volume of laser system, and difficult analysis
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[0035] refer to figure 1 , which is a block diagram of a short-delay laser linewidth measurement system based on photoelectric feedback in the present invention, the short-delay laser linewidth measurement system based on photoelectric feedback includes: a laser, an optical power beam splitter, a time-delay optical fiber, Optical couplers, photodetectors, amplifiers, low-pass filters, and pressure-to-current converters;
[0036] The laser includes a laser input end and a laser output end, the optical power beam splitter includes a first beam output end, a second beam output end, and a beam input end, the delay fiber includes a delay input end and a delay output end, and the optical coupler includes The first optical coupling input end, the second optical coupling input end and the optical coupling output end, the photodetector includes a photoelectric signal input end and a photoelectric signal output end, the amplifier includes a transmission signal input end and a transmissi...
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