Multi-wavelength light source based on microcavity soliton

Abstract

The invention discloses a multi-wavelength light source based on microcavity solitons. The multi-wavelength light source includes an incident light source, an input light control module, a second beam combiner, a microring resonant cavity, a wavelength division multiplexer, a feedback system, and a filter device and control module, wherein the incident light source, input light control module, second beam combiner, microring resonator, wavelength division multiplexer and filter are connected in sequence, and the input end of the feedback system is connected to the output end of the wavelength division multiplexer , the output end of the feedback system is connected to the input end of the second beam combiner; the control module is simultaneously connected to the incident light source and the feedback system. The present invention uses a continuous wave laser and a femtosecond pulse laser, through a microring resonator and a feedback system, to provide a laser system that includes more than ten to dozens of channels with small power difference, good coherence, and tens of frequency intervals. A multi-wavelength light source based on microcavity solitons to hundreds of GHz.

Description

technical field [0001] The invention relates to the technical fields of optical communication and nonlinear optics, in particular to an on-chip wavelength division multiplexing optical interconnection technology, in particular to a multi-wavelength light source realized based on microcavity solitons. Background technique [0002] Dense wavelength division multiplexing is a key technology in optical communication. Multi-wavelength light sources play a very important role in the field of optical communication. Therefore, it is of great significance to obtain multi-wavelength light sources with flat power, high signal-to-noise ratio, and equal frequency spacing. [0003] The usual way to obtain a multi-wavelength light source with flat power, high signal-to-noise ratio, and equal frequency intervals is to integrate multiple semiconductor lasers to form a laser array, but this method requires strict control of the output wavelength of each laser unit to ensure that the entire las...

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Problems solved by technology

[0004] The microcavity optical frequency comb can output multi-channel optical signals with equal wavelength intervals and fixed wavelength positions. However, the comb-shaped spectrum output by the traditional single-resonator microcavity optical frequency comb has a large difference in the optical power of each wavelength, and the pump Light conversion efficiency is low

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