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Super-continuum spectrum fiber laser

A fiber laser and laser technology, applied in the field of lasers, can solve problems such as low coupling efficiency of pump light, and achieve the effects of improving beam quality, improving output power and thermal management capabilities, and improving coupling efficiency

Pending Publication Date: 2017-05-31
CHINA ACADEMY OF ELECTRONICS & INFORMATION TECH OF CETC
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Problems solved by technology

[0003] In order to overcome the defects of the above-mentioned prior art, the technical problem to be solved by the present invention is to provide a supercontinuum fiber laser to solve the problem of low pump light coupling efficiency of the existing high-power supercontinuum fiber laser, and realize high High Power Supercontinuum Laser Output with Pump Light Coupling Efficiency

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  • Super-continuum spectrum fiber laser

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Embodiment Construction

[0025] In order to solve the problems of the prior art, the present invention provides a supercontinuum fiber laser. The present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0026] Such as figure 1 Shown, a kind of supercontinuum fiber laser in the embodiment of the present invention comprises pulsed laser seed source 1, power pre-amplifier 2, first mode field matcher 3, power main amplifier 4, second mode field matcher 5 and photon Crystal fiber 6;

[0027] The first pulsed laser emitted by the pulsed laser seed source 1 passes through the power pre-amplifier 2 to obtain a second pulsed laser; the second pulsed laser passes through the first mode field matcher 3 to obtain a third pulsed laser; The third pulse laser passes through the power main amplifier ...

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Abstract

The invention discloses a super-continuum spectrum fiber laser to solve the problem that a high power super-continuum spectrum fiber laser in the prior art has low efficiency in coupling of pump light. The laser comprises a pulse laser seed resource, a power pre-amplifier, a first mode field matcher, a main power amplifier, a second mode field matcher and photonic crystal fibers. The pulse laser seed resource gives out a first pulse laser, which passes through the power pre-amplifier to produce a second pulse laser; the second pulse laser passes through the first mode field matcher to produce a third pulse laser; the third pulse laser passes through the main power amplifier to produce a fourth pulse laser; and the fourth pulse laser is coupled into the photonic crystal fibers through the second mode field matcher to generate the super-continuum spectrum laser. The first mode field matcher is used to improve the quality of light beam of the second pulse laser; and the second mode field matcher is used to reduce the coupling loss when the fourth pulse laser enters the photon crystal fibers.

Description

technical field [0001] The invention relates to the field of lasers, in particular to a supercontinuum fiber laser. Background technique [0002] All-fiber supercontinuum lasers usually use a pulsed fiber laser with a higher peak power at a certain wavelength to pump a highly nonlinear fiber to achieve supercontinuum laser output. Thanks to the rapid development of high-power ultrashort-pulse fiber lasers and highly nonlinear quartz photonic crystal fibers, the spectral range of supercontinuum lasers using near-infrared lasers as pump light can extend from 400nm to more than 2000nm, and the average power can reach up to tens of watts. In order to further increase the output power of all-fiber supercontinuum lasers, the difficult problem to be solved is how to efficiently couple the pump laser into the photonic crystal fiber. Contents of the invention [0003] In order to overcome the defects of the above-mentioned prior art, the technical problem to be solved by the pres...

Claims

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Application Information

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IPC IPC(8): H01S3/067H01S3/094H01S3/10
CPCH01S3/067H01S3/094042H01S3/102
Inventor 蔺博高静
Owner CHINA ACADEMY OF ELECTRONICS & INFORMATION TECH OF CETC
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