All-fiber high repetition frequency pulse generation system and method

A technology with high repetition rate and repetition rate, applied to lasers, laser components, electrical components, etc., can solve problems such as complex solutions and difficult integration, and achieve the effect of simple solutions

Active Publication Date: 2021-02-05
武汉中科锐择光电科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] In view of this, it is necessary to provide an all-fiber high repetition rate pulse generation system and method to solve the problems of complex solutions and difficult integration in the prior art

Method used

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  • All-fiber high repetition frequency pulse generation system and method
  • All-fiber high repetition frequency pulse generation system and method
  • All-fiber high repetition frequency pulse generation system and method

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Embodiment 1

[0025] The embodiment of the present invention provides an all-fiber high repetition rate pulse generation system, its structural schematic diagram, as shown in figure 1 As shown, the system includes a set number of collinear pulse replication units and a beam-splitting pulse replication unit 3, and the set number of collinear pulse replication units are sequentially connected with the beam-splitting pulse Copy unit 3 connection;

[0026] The first-level collinear pulse replication unit 1 is used to set the set pulse width and set repetition frequency as f rep The incident pulse is modulated by two time intervals t and repetition frequency 2f rep The ultra-short pulse sequence; the mth stage collinear pulse replication unit 2, used for t / 2 according to the two time intervals m-2 , repetition frequency is 2 m-1 f rep A sequence of ultrashort pulses, generating two time intervals t / 2 m-1 , repetition frequency is 2 m f rep The ultra-short pulse sequence; the beam-splittin...

Embodiment 2

[0051] An embodiment of the present invention provides a method for the all-fiber high repetition rate pulse generation system according to the above-mentioned embodiment 1, including the following steps: setting the pulse width and the repetition rate as f rep The incident pulse is modulated by two time intervals t and repetition frequency 2f rep The ultrashort pulse sequence; according to the two time intervals is t / 2 m-2 , repetition frequency is 2 m-1 f rep A sequence of ultrashort pulses, generating two time intervals t / 2 m-1 , repetition frequency is 2 m f rep The ultrashort pulse sequence; according to the two time intervals is t / 2 m-1 , repetition frequency is 2 m frep A sequence of ultrashort pulses, generating two time intervals t / 2 m , repetition frequency is 2 m+1 f rep The ultrashort pulse sequence, m is the set number of collinear pulse replication units, m≥2.

[0052] The invention discloses a first-level collinear pulse replication unit, which sets th...

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Abstract

The invention relates to an all-fiber high repetition frequency pulse generation system and method. The system comprises a set number of collinear pulse replication units and a beam splitting pulse replication unit. The first-stage collinear pulse replication units are used for modulating an incident pulse with a set pulse width and a set repetition frequency of frep into two ultra-short pulse sequences with a time interval of t and a repetition frequency of 2frep; the mth-stage collinear pulse replication unit is used for generating two ultra-short pulse sequences with the time interval of t / 2m-1 and the repetition frequency of 2mfrep according to the two ultra-short pulse sequences with the time interval of t / 2m-2 and the repetition frequency of 2m-1frep; and the beam splitting type pulse replication unit is used for generating two ultra-short pulse sequences with the time interval of t / 2m and the repetition frequency of 2m+1frep according to the two ultra-short pulse sequences withthe time interval of t / 2m-1 and the repetition frequency of 2mfrep. According to the system, the repetition frequency of the input pulse is effectively improved, the time interval of the pulse sequence is reduced, meanwhile, the scheme is simple, and the system is convenient to integrate.

Description

technical field [0001] The invention relates to the field of ultrashort pulse technology, in particular to an all-fiber high repetition frequency pulse generation system and method. Background technique [0002] High repetition rate ultrashort pulses have been widely used in optical frequency combs, high-speed optical fiber communications, photonic microwave systems and other fields, and are one of the research hotspots of many research institutions at home and abroad; There is an increasing demand for high repetition rate ultrashort pulses in the field, especially when using existing laser systems. Obtaining laser light sources with high repetition rate pulse train mode has become an important factor for improving system processing efficiency and processing accuracy and reducing laser processing system development and maintenance costs. one of the research topics. [0003] At present, there are two main technical methods for directly generating high repetition rate ultrash...

Claims

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Application Information

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Patent Type & AuthorityApplications(China)
IPC IPC(8): H01S3/00H01S3/11
CPCH01S3/0057H01S3/11
Inventor高茂华孙晓杰
Owner武汉中科锐择光电科技有限公司