OPTICAL FEEDBACK-BASED REPETITIVE FREQUENCY ADJUSTABLE OPTICAL FREQUENCY COMB

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United States of America Patent

APP PUB NO 20190310498A1
SERIAL NO

16315114

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Abstract

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The present invention provides a repetition frequency-tunable optical frequency comb generated by basis of optical feedback. The optical frequency comb comprises a single-frequency laser resonant cavity, a wavelength division multiplexer, a single-mode semiconductor pump light source, an optical circulator, a first optical fiber coupler, a second optical fiber coupler, a photoelectric detector, a highly-stable signal source, an error signal processing system, a laser frequency modulation device and a tunable laser-delay module. The present invention performs delay-time processing to the single-frequency laser by the tunable laser-delay module, and achieves an optical feedback by the optical circulator for injecting to the resonant cavity, generating a series of tunable laser longitudinal modes with equal frequency space. Meanwhile, in combination with the highly-stable signal source, the error signal processing system and the laser frequency modulation device, a laser frequency lock is achieved, and the laser frequency comb is generated. The invention obtains a repetition frequency-tunable laser frequency comb with a simple and practical method, having an extensive application prospect and huge application value in fields such as optical fiber sensing and spectroscopy of atom and molecule.

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Patent Owner(s)

Patent OwnerAddress
SOUTH CHINA UNIVERSITY OF TECHNOLOGY381 WUSHAN ROAD TIANHE DISTRICT GUANGZHOU

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Feng, Zhouming Guangzhou, CN 4 0
Xu, Shanhui Guangzhou, CN 6 1
Yang, Changsheng Guangzhou, CN 6 6
Yang, Zhongmin Guangzhou, CN 9 27
Zhao, Qilai Guangzhou, CN 1 0

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