Micro-nano fiber mode-locking device and preparation method thereof, and all-fiber laser device

A micro-nano optical fiber and mode-locking technology, which is applied in the laser field, can solve the problems of complex preparation process of saturable absorbers, high cost of micro-nano optical fiber preparation, and low yield, so as to reduce the risk of easy breakage, reduce manufacturing difficulty and The effect of high cost and high yield
CN110289543AInactive Publication Date: 2019-09-27SICHUAN UNIV
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
SICHUAN UNIV
Publication Date
2019-09-27
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention provides a micro-nano fiber mode-locking device and a preparation method thereof, and an all-fiber laser device and belongs to the laser technology field. The method comprises steps that micro-nano fiber segments are prepared and the micro-nano fiber segments are coated, specifically, steps of preparing the micro-nano fiber segments further comprises preparing a plurality of fibers whose intermediate portions are bare fiber segments; the bare fiber segments are etched by placing the fibers in a beaker containing fiber etchant, the etched bare fiber segments are made into the micro-nano fiber segments, and so on. The method is advantaged in that preparation from the micro-nano fibers to saturable absorbers is the simple and reproducible process, and preparation difficulty and cost of the micro-nano fibers and the saturable absorbers are greatly reduced; the micro-nano fiber mode-locking device is prepared by the above preparation method and applied to the all-fiber laser device, stable mode-locked pulses and a stable mode-locking state can be obtained through utilizing the micro-nano fiber mode-locking device, and the output laser has no abnormal pulse .
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Description

technical field

[0001] The invention relates to a micro-nano optical fiber mode-locking device, a preparation method thereof, and an all-fiber laser, and belongs to the field of laser technology. Background technique

[0002] Fiber mode-locked lasers can output femtosecond or picosecond pulses, and have the advantages of compact structure, small size, and good beam quality. They are widely used in industry, medicine, and scientific research. At present, the mode-locking methods include nonlinear polarization rotation mode-locking, nonlinear fiber loop mirror mode-locking and saturable absorber mode-locking. Saturable absorbers include semiconductor saturable absorbing mirrors, two-dimensional nanomaterials (graphene, topological insulators, transition metal sulfides, black scales, etc.) and resonant saturable absorbing nanoparticles. Due to the advantages of stable mode-locking, easy start-up, and rich mode-locking parameters of saturable absorbers, the commercialization ha...

Claims

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