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Adjustable microcavity soliton optical frequency comb system and method based on special doped fiber

A technology of doped fiber and optical frequency comb, applied in lasers, phonon exciters, laser parts and other directions, can solve the problems of uncontrollable preparation process, complex preparation process, poor repeatability, etc., and achieve photothermal conversion efficiency High performance, strong environmental stability, and high preparation reproducibility

Active Publication Date: 2022-07-29
ZHEJIANG LAB
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] At present, based on thermal regulation or by attaching materials to the microcavity to achieve light absorption or electric heating, the efficiency is low, the preparation process is uncontrollable, and the repeatability is not good; the scheme based on graphene electric regulation requires precise micromachining technology, The preparation process is complicated

Method used

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  • Adjustable microcavity soliton optical frequency comb system and method based on special doped fiber
  • Adjustable microcavity soliton optical frequency comb system and method based on special doped fiber
  • Adjustable microcavity soliton optical frequency comb system and method based on special doped fiber

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Effect test

Embodiment 1

[0055] figure 1 is a schematic diagram of a tunable microcavity soliton optical frequency comb system based on a special doped fiber according to an exemplary embodiment, such as figure 1 As shown, the system may include a soliton excitation module 1, a fiber ball comb module 2, a spectrum detection module 3 and an optical control tuning module 4, and the soliton excitation module 1 is used to generate a pump laser with adjustable wavelength, power and polarization; The fiber ball-comb module 2 is used to receive the pump laser to realize soliton excitation, and includes a fiber microsphere resonator 21 and a micro-nano coupling fiber 22, wherein the fiber microsphere resonator 21 is prepared based on a special doped fiber. , after the micro-nano coupling fiber 22 is coupled with the fiber microsphere resonant cavity 21, the soliton optical frequency comb signal is output from the micro-nano fiber, wherein the special doped fiber absorbs the spectrum of a specific band to perf...

Embodiment 2

[0077] The present application also provides a method for tuning a tunable optical frequency comb based on a special doped fiber. The method is applied to the system described in Embodiment 1, and may include:

[0078] Step S21: generating a pump laser with a predetermined wavelength, power and polarization through the soliton excitation module 1;

[0079] Step S22: The pump laser is transmitted to the micro-nano coupling fiber 22, and the position and distance of the micro-nano coupling fiber 22 and the fiber microsphere resonator 21 are adjusted, so that the soliton optical frequency comb signal is in the fiber microsphere. The surface of the resonant cavity 21 is generated and output by the micro-nano coupling fiber 22;

[0080] Step S23: Input the soliton optical frequency comb signal into the spectrum detection module 3 and transmit the first output of the spectrum detection module 3 to the optical control tuning module 4, so as to adjust the optical fiber through the out...

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Abstract

The invention discloses an adjustable microcavity soliton optical frequency comb system and method based on a special doped fiber, and the system comprises a soliton excitation module which is used for generating pumping laser; the optical fiber ball comb module is used for receiving the pumping laser so as to realize soliton excitation and comprises an optical fiber microsphere resonant cavity and a micro-nano coupling optical fiber, the optical fiber microsphere resonant cavity is prepared based on a special doped optical fiber, and the micro-nano coupling optical fiber and the optical fiber microsphere resonant cavity are coupled and then output soliton optical frequency comb signals; the spectrum detection module divides soliton optical frequency comb signals into three paths, one path is used for tuning and monitoring the soliton optical frequency comb signals for feedback, and the other two paths are used for time domain and frequency domain measurement and spectrum measurement after entering a frequency comb steady state control mode; and the light-operated tuning module receives feedback output of the spectrum detection module, and the output end of the light-operated tuning module is connected with the ball cavity of the optical fiber ball comb module so as to adjust the soliton optical frequency comb signal.

Description

technical field [0001] The present application relates to the field of optical frequency comb light sources, and in particular, to a system and method for a tunable microcavity soliton optical frequency comb based on a special doped fiber. Background technique [0002] As a new type of laser light source, optical frequency combs combine the advantages of narrow linewidth lasers and broadband light sources, exhibiting ultra-wide spectrum, extremely narrow mode linewidth and ultra-fast time-domain pulse characteristics, and are widely used in communications, sensing and Spectral measurement and other fields have great potential in basic research and application fields. Among them, the microcavity soliton optical frequency comb has been rapidly developed due to its advantages of small size, easy integration, convenient excitation and stable output. However, once the microcavity is fabricated, its material and shape are difficult to change, resulting in a difficult problem in t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01S3/13H01S3/10H01S3/067H01S3/094H01S3/0941
CPCH01S3/1305H01S3/10H01S3/06716H01S3/0941H01S3/094042
Inventor 严国锋艾琳饶云江
Owner ZHEJIANG LAB