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Published in:
2022 | OriginalPaper | Chapter
8. Optical Frequency Comb Generation Mechanism and Application
Authors : Jianjun Zhang, Jing Li
Published in: Satellite Photoelectric Sensing Technology
Publisher: Springer International Publishing
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Abstract
The optical frequency comb has been widely studied by researchers as one of the 2005 Nobel Prize in Physics. The performance of the optical frequency comb in the frequency domain is such that the spacing between each of its frequency components is equal, in the form of a comb we use every day. Due to its unique frequency distribution, the optical frequency comb provides us with a bridge between optical and RF. The optical frequency comb converts the unknown optical frequency information into radio frequency information, analyzes and controls the unknown parameters by analyzing the radio frequency information. Applications include optical frequency measurement, high-quality optical clock source generation, gas molecular measurement, ultra-fast optical signal processing and photon arbitrary waveform generation.
The main contents of this chapter are:
(1) Optical frequency comb generation method
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Optical frequency comb generation is based on mode-locked laser
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It is a single modulator method
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This method is based on cascade of intensity modulation and phase modulation
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Optical frequency comb generation of optical cavity is based on phase modulation
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Generation of optical frequency comb is based on self-phase modulation in optical fiber
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It is also based on micro resonator cavity
(2) Experiments to generate broadband flat optical frequency combs with high frequency intervals
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Generation of broadband flat optical frequency comb is based on RFS
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Principle of an RFS-based optical frequency comb
(3) Generation technology of bi-coherent optical frequency comb based on time lens method
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Principle of optical frequency comb generated by time lens method
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Experimental device for generating coherent optical frequency combs