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A hybrid cavity cascaded multi-wavelength narrow-linewidth fiber laser

A fiber laser and narrow linewidth technology, applied in the direction of lasers, laser components, phonon exciters, etc., can solve the problems of high cost, complex structure, low light-to-light conversion efficiency, etc., to reduce production costs and simplify cavity type structure, the effect of lowering the gain threshold

Active Publication Date: 2020-08-04
UNIV OF ELECTRONICS SCI & TECH OF CHINA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The purpose of the present invention is to provide a hybrid cavity type cascaded multi-wavelength narrow-linewidth fiber laser, which solves the problems of the existing multi-wavelength fiber laser with complex structure, high cost, and low light-to-light conversion efficiency.

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  • A hybrid cavity cascaded multi-wavelength narrow-linewidth fiber laser

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Embodiment 1

[0055] A hybrid cavity-type cascaded multi-wavelength narrow-linewidth fiber laser provided by a preferred embodiment of the present invention includes a standard linear cavity 100 and a semi-open random cavity 200 connected to the standard linear cavity 100. The standard linear cavity The semi-open random cavity 200 oscillates and tunes the two beams of laser beams output by the standard linear cavity 100 to symmetrically output two beams of ultra-narrow laser beams. Linewidth Brillouin Random Laser.

[0056] Further, the standard linear cavity 100 includes a first pump laser 101, a second pump laser 102, a first wavelength division multiplexer 103 connected to the first pump laser 101, and a second pump laser 102 The second wavelength division multiplexer 104 connected, the Faraday rotator 107 connected with the 2nd port of the first wavelength division multiplexer 103, the first fiber grating Fabry-Perot standard connected with the Faraday rotator 107 Tool 105, the second ...

Embodiment 2

[0068] A hybrid cavity-type cascaded multi-wavelength narrow-linewidth fiber laser provided by a preferred embodiment of the present invention includes a standard linear cavity 100 and a semi-open random cavity 200 connected to the standard linear cavity 100. The standard linear cavity The semi-open random cavity 200 oscillates and tunes the two beams of laser beams output by the standard linear cavity 100 to symmetrically output two beams of ultra-narrow laser beams. Linewidth Brillouin Random Laser.

[0069] Further, the standard linear cavity 100 includes a first pump laser 101, a second pump laser 102, a first wavelength division multiplexer 103 connected to the first pump laser 101, and a second pump laser 102 The second wavelength division multiplexer 104 connected, the Faraday rotator 107 connected with the 2nd port of the first wavelength division multiplexer 103, the first fiber grating Fabry-Perot standard connected with the Faraday rotator 107 Tool 105, the second ...

Embodiment 3

[0081] A hybrid cavity-type cascaded multi-wavelength narrow-linewidth fiber laser provided by a preferred embodiment of the present invention includes a standard linear cavity 100 and a semi-open random cavity 200 connected to the standard linear cavity 100. The standard linear cavity The semi-open random cavity 200 oscillates and tunes the two beams of laser beams output by the standard linear cavity 100 to symmetrically output two beams of ultra-narrow laser beams. Linewidth Brillouin Random Laser.

[0082] Further, the standard linear cavity 100 includes a first pump laser 101, a second pump laser 102, a first wavelength division multiplexer 103 connected to the first pump laser 101, and a second pump laser 102 The second wavelength division multiplexer 104 connected, the Faraday rotator 107 connected with the 2nd port of the first wavelength division multiplexer 103, the first fiber grating Fabry-Perot standard connected with the Faraday rotator 107 Tool 105, the second ...

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Abstract

The invention discloses a mixed-cavity cascaded multi-wavelength narrow-linewidth fiber laser, which belongs to the technical field of fiber lasers. Two beams of laser light emitted by two pump lasers drive a standard line cavity and are respectively oscillated and tuned by the standard line cavity. Symmetrical output of two narrow linewidth laser beams, two narrow linewidth laser beams drive a semi-open random cavity and symmetrically output two ultra-narrow linewidth Brillouin random laser beams through semi-open random cavity oscillation tuning, realizing two beams in the same system A different cavity structure is used to realize multi-wavelength output by using a hybrid cavity structure, which solves the problems of complex structure, high cost and low light-to-light conversion efficiency of existing multi-wavelength fiber lasers.

Description

technical field [0001] The invention belongs to the technical field of fiber lasers, in particular to a mixed-cavity cascaded multi-wavelength narrow-linewidth fiber laser. Background technique [0002] Random fiber laser (RFL) is a new type of laser composed of distributed Rayleigh scattering random feedback mechanism in ultra-long fiber. It has unique spectrum and noise characteristics, and has made great contributions to the basic physics of laser radiation. It also has application prospects in communication and fiber optic sensing. In the past few years, a series of advances in RFL have been achieved based on various gain mechanisms, such as Raman scattering, rare-earth-doped fiber amplification, and Brillouin scattering, with the aid of inhomogeneous stochastic feedback from fiber refractive index profiles. [0003] Multi-wavelength fiber lasers (MWFL) are mostly realized by multiple grating frequency-selected semiconductor lasers or semiconductor laser arrays. After ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01S3/08H01S3/094H01S3/067H01S3/30
CPCH01S3/06716H01S3/0675H01S3/08H01S3/094011H01S3/302
Inventor 欧中华何欢欢郭建茹崔楠楠
Owner UNIV OF ELECTRONICS SCI & TECH OF CHINA
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