Repetition frequency tunable integrated perfect soliton crystal frequency comb source and generation method

Abstract

The invention relates to an optical frequency comb, in particular to a repetition-frequency-tunable integrated perfect soliton crystal frequency comb source based on a microcavity and a generation method thereof. The frequency comb source comprises a soliton frequency comb optical module, an output port and a control system, wherein the soliton frequency comb optical module comprises a pump laser, a control laser and a high-quality factor on-chip optical microcavity. According to the method, a periodic light field is generated by utilizing beat frequency of control light and pump light and is used for capturing optical time domain solitons, so that uniform distribution of the optical solitons in a cavity is realized; and the position of the control light is adjusted to change the cycle number of the background field in the microcavity, so that the repetition frequency of the soliton optical frequency comb is regulated and controlled. The technical scheme provided by the invention has the advantages of small volume, low cost, adjustable repetition frequency of the optical frequency comb, high stability and strong controllability, and solves the problem of deterministic regulation and control of the microcavity optical frequency comb.

Description

technical field [0001] The invention relates to an optical frequency comb system, in particular to an integrated perfect soliton crystal frequency comb source and a production method with tunable repetition frequency. Background technique [0002] An optical frequency comb (optical frequency comb) is a comb-like spectrum composed of a series of discrete, equally spaced frequency comb teeth. Thanks to the ultra-high frequency stability of optical frequency combs, optical frequency combs have been widely used in optical frequency measurement, ultra-high-precision time-frequency standards, precision measurement and other fields. At present, optical frequency combs have experienced three generations of technologies: frequency chains, mode-locked laser frequency combs, and on-chip integrated Kerr optical frequency combs. Among them, the on-chip integrated Kerr optical frequency combs have the advantages of small size, light weight, low power consumption, and high repetition frequ...

AI Technical Summary

Problems solved by technology

In addition, most of the soliton crystal frequency combs reported so far have multiple frequencies above THz, which cannot be controlled arbitrarily

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