Pulse fiber laser based on side pumping technology

Pending Publication Date: 2020-05-15
成都翱翔拓创光电科技合伙企业(有限合伙)
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Problems solved by technology

[0005] This application provides a pulsed fiber laser based on side pumping technology to solve the technical problems existing in the prior art, overcome the shortcomings of the pulsed fiber laser of the existing end pumping scheme, and build a new pulsed laser system by using side pumped fiber , to suppress ASE and nonlinear effects that are prone to occur during pulsed laser output

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  • Pulse fiber laser based on side pumping technology
  • Pulse fiber laser based on side pumping technology
  • Pulse fiber laser based on side pumping technology

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Embodiment Construction

[0045] The technical solutions in the embodiments of the present application will be described below with reference to the drawings in the embodiments of the present application.

[0046] Such as figure 1 , 2 As shown, the present application provides a pulsed fiber laser based on side pumping technology, which can be used in various application scenarios, such as material surface cleaning, laser drilling, etc.

[0047] Specifically, pulsed fiber lasers based on side-pumped technology

[0048] Including: seed source generation unit, pre-amplification unit, main amplification unit;

[0049] A seed source generation unit is used to generate pulsed laser light according to the resonant cavity with reverse pumping function;

[0050] A pre-amplification unit for performing pulse-type laser gain amplification;

[0051] The main amplification unit is used to realize the secondary amplification of the pulsed laser based on the side-pumped fiber;

[0052] Wherein, the seed source ...

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Abstract

The invention relates to the technical field of photoelectrons, in particular to a pulse fiber laser based on a side pumping technology. The pulse fiber laser comprises: a seed source generation unitwhich is used for generating seed light according to a resonant cavity with a reverse pumping function; a pre-amplification unit used for carrying out seed light gain amplification and generating a corresponding laser signal; a main amplification unit used for realizing laser signal amplification based on a side pumping optical fiber; and a laser output head used for outputting the amplified lasersignal, wherein the seed source generation unit comprises a high-reflection grating, an acoustic optical modulator, a first active optical fiber, a low-reflection output grating and a first beam combiner; and the high-reflection grating, the acoustic optical modulator, the first active optical fiber, the low-reflection output grating and the first beam combiner are connected in sequence. According to the invention, a brand-new pulse laser system is built by adopting the side pumping optical fiber, so that ASE and nonlinear effects which are extremely easy to occur in a pulse laser output process are suppressed.

Description

technical field [0001] The invention relates to the field of optoelectronic technology, in particular to a pulsed fiber laser based on side pumping technology. Background technique [0002] All-fiber lasers have the advantages of compact structure, good heat dissipation, high conversion efficiency, excellent beam quality and stable performance, and have gradually replaced solid-state lasers, chemical lasers and gas lasers to become mainstream products in the current laser market. The kilowatt-class fiber laser with all-fiber structure mostly adopts the following three laser resonator structures: 1) through a forward pump beam combiner, multiple identical pump sources unidirectionally pump a single-fiber FAP cavity structure; 2) through two A pump combiner, in which the reverse pump / signal combiner is a side pump structure, using multiple identical pump sources to bidirectionally pump a single-fiber FAPO cavity structure; 3) the main oscillator using a seed source plus an amp...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01S3/067H01S3/0941H01S3/13
CPCH01S3/06754H01S3/09415H01S3/1301
Inventor 林傲祥冷晓晓彭昆
Owner 成都翱翔拓创光电科技合伙企业(有限合伙)
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