Microcavity thermal effect compensation method in Kerr optical frequency comb soliton mode locking process

Abstract

The present invention discloses a microcavity thermal effect compensation method in a Kerr optical frequency comb soliton mode locking process. Auxiliary laser is introduced into an optical microcavity and is employed to perform heating makeup of thermal effect in the soliton mode locking process to keep the thermal equilibrium state of the optical microcavity in the soliton mode locking process and perform certainty realization of the soliton mode locking in the optical microcavity each time so as to greatly simplify the soliton mode locking process in the optical microcavity and avoid the problems of the current Kerr optical frequency comb soliton mode locking process is high in randomness, bad in reliability and liable to disturbance, etc; and moreover, the optical power of the Kerr optical frequency comb is monitored to feed back and control the wavelength of the auxiliary laser, the soliton mode locking state can be stably existed for a long time, and when the soliton mode locking state is lost caused by external interference, the soliton mode locking state can be automatically recovered through control of the auxiliary laser so as to greatly improve the stability of the soliton mode locking state in the optical microcavity.

Description

technical field [0001] The invention belongs to the technical field of optical communication, and more specifically relates to a microcavity thermal effect compensation method in the Kerr optical comb soliton mode-locking process. Background technique [0002] Optical frequency combs (or optical frequency combs for short) can provide equally spaced frequency tags, providing a revolutionary tool for spectroscopy and precision measurements. Optical frequency combs have great application prospects in many fields such as precision spectroscopy, astronomical spectrum calibration, ultra-stable microwave oscillators, and high-speed optical communications. [0003] At present, most optical frequency combs are based on ultrashort pulse lasers. Such devices are often bulky, complex in structure, expensive, and cannot be integrated. In recent years, with the development of technology, a new scheme based on ultra-high quality factor (referred to as high Q value) optical microcavity to ...

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Problems solved by technology

[0007] The purpose of the present invention is to overcome the deficiencies of the prior art, to provide a microcavity thermal effect compensation method in the Kerr optical comb soliton mode locking proce...

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