Optical frequency comb generation device, production device preparation method and production method

Abstract

The application discloses an optical frequency comb generating device, a manufacturing method of the generating device and a generating method, and relates to an optical frequency comb. Wherein, the device includes a substrate, and a pumping waveguide, a suppression waveguide, and an optical microcavity grown on the substrate; the optical microcavity is used to generate an optical frequency comb; the pumping waveguide is located outside the optical microcavity, and the pumping waveguide is used for The optical signal is incident into the optical microcavity; the suppression waveguide is an arc waveguide located outside the optical microcavity, and the suppression waveguide and the optical microcavity have a coupling effect at Raman frequency. The present application increases the suppression waveguide in the generation device of the optical frequency comb, and the suppression waveguide and the optical microcavity have a coupling effect at the Raman frequency, so as to increase the optical power threshold generated by the Raman scattering effect in the optical microcavity, and suppress the optical microcavity The Raman scattering effect in the laser can prevent the generation of Raman laser, so as to produce high-quality optical frequency comb.

Description

technical field [0001] The present application relates to an optical frequency comb, in particular to an optical frequency comb generating device, a manufacturing method of the generating device and a generating method. Background technique [0002] Optical Frequency Comb (OFC), referred to as Optical Frequency Comb, is a spectrum composed of a series of frequency components that are evenly spaced and have a coherent and stable phase relationship. The emergence of optical frequency comb technology has realized the conversion of optical frequency to microwave frequency, made it possible to measure optical frequency precisely, and contributed to the realization of optical atomic clocks. [0003] With the development of micro-nano processing technology, the technology of using optical microcavities to generate optical frequency combs has begun to occupy an increasingly important position. This kind of optical frequency combs is also called microcavity optical frequency combs. ...

AI Technical Summary

Problems solved by technology

However, in the traditional optical frequency comb generation technology, the material used in the optical microcavity is usually a crystal material. Therefore, when the optical microcavity generates the optical frequency comb, the Raman scattering effect will also occur. Due to the Raman scattering effect Influence, the optical frequency comb cannot be produced but the Raman laser is produced, even if the optical frequency comb is produced, the quality of the optical frequency comb will be affected

Images