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TUNABLE NARROW-LINEWIDTH PHOTO-GENERATED MICROWAVE SOURCE BASED ON POLARIZATION CONTROL
TUNABLE NARROW-LINEWIDTH PHOTO-GENERATED MICROWAVE SOURCE BASED ON POLARIZATION CONTROL
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机译：基于极化控制的可调窄线宽的光生成微波源
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摘要
A tunable narrow-linewidth photo-generated microwave source based on polarization control includes a high-reflectivity fiber grating, a high-gain fiber, a low-reflectivity polarization-maintaining fiber grating, a stress adjusting device, a single-mode semiconductor pump laser, an optical wavelength division multiplexer, a polarization beam splitter, a polarization controller, an optical coupler, and a photoelectric detector. Birefringence distribution in the low-reflectivity polarization-maintaining fiber grating is controlled by adjusting a stress magnitude of the stress adjusting device to the low-reflectivity polarization fiber grating, thereby controlling a laser frequency working in different polarization modes in a resonant cavity, and a tunable narrow-linewidth photo-generated microwave source is generated by a beat-frequency technology using a dual-wavelength narrow-linewidth laser with variable frequency intervals.
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