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A self-starting and self-recovery mode-locked fiber laser

A fiber laser and self-recovery technology, applied in the optical field, can solve problems such as low stability and lack of self-repair function of saturable absorbers, and achieve high-energy effects

Active Publication Date: 2021-10-26
SHENZHEN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The self-starting and self-restoring mode-locked fiber laser solves the shortcomings of the existing mode-locked fiber laser, such as the lack of self-repair function and low stability when the saturable absorber fails or is damaged.

Method used

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  • A self-starting and self-recovery mode-locked fiber laser
  • A self-starting and self-recovery mode-locked fiber laser

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Embodiment Construction

[0025] Below, the present invention will be further described in conjunction with the accompanying drawings and specific implementation methods. It should be noted that, under the premise of not conflicting, the various embodiments described below or the technical features can be combined arbitrarily to form new embodiments. .

[0026] Such as figure 1 Shown is a self-starting and self-recovery mode-locked fiber laser according to an embodiment of the present invention. The self-starting and self-recovering mode-locked fiber laser includes a pump source 1, a wavelength division multiplexing coupler 2, a gain fiber 3, a one-way isolator 4, an algorithm-controlled polarization controller 5, a coupler 6 and a saturable absorber Body 7, wherein, pump source 1, wavelength division multiplexing coupler 2, gain fiber 3, one-way isolator 4, algorithm control polarization controller 5, output coupler 6 and saturable absorber 7 are sequentially optically connected from head to tail to ...

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Abstract

The invention provides a self-starting and self-restoring mode-locked fiber laser, including a pump source, a wavelength division multiplexing coupler, a gain fiber, a one-way isolator, an algorithm-controlled polarization controller, a coupler and a saturable absorber body, the pump source, wavelength division multiplexing coupler, gain fiber, one-way isolator, algorithm control polarization controller, coupler and saturable absorber are optically connected from head to tail in turn to form an optical circulation path; the algorithm control A polarization controller is used to control the polarization state of the laser. The self-starting and self-restoring mode-locked fiber laser of the present invention combines the self-starting function of the saturable absorber and the self-repairing function of the algorithm-controlled polarization controller to achieve high-energy, high-stability and high-signal-to-noise ratio mode-locked pulse output.

Description

technical field [0001] The invention relates to the field of optics, in particular to a self-starting and self-restoring mode-locked fiber laser. Background technique [0002] As one of the most important scientific discoveries in the 20th century, laser has greatly promoted the development of science and technology. Passively mode-locked fiber lasers that use rare earth-doped fibers as gain media have developed rapidly in recent years due to their wide application in optical communications, optical data storage, sensing technology, and medicine. Pulsed fiber lasers can Under the condition of ensuring good beam quality, a very high repetition rate and peak power can be obtained at a low average output power. At the same time, it also has excellent flexibility and flexibility, can be designed with high reliability, and is easy to system integration. Ultrashort pulse fiber lasers working in the near-infrared (1 micron and 1.5 micron) band have been widely used in various fiel...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01S3/10H01S3/11H01S3/067
CPCH01S3/067H01S3/10061H01S3/1118
Inventor 张晗宋宇锋张家宜
Owner SHENZHEN UNIV
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