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Picosecond seed source laser

A laser and seed technology, applied in the laser field, can solve problems such as poor stability and complex structure, and achieve the effect of improving stability and simplifying laser structure

Inactive Publication Date: 2019-04-16
WUHAN RAYCUS FIBER LASER TECHNOLOGY CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

But the NPE structure includes space structure, complex structure and poor stability

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  • Picosecond seed source laser

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Embodiment Construction

[0015] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are the Some, but not all, embodiments are invented. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0016] figure 1 It is a schematic diagram of the structure of a picosecond seed source laser provided by the embodiment of the present invention, such as figure 1 shown, including:

[0017] A saturable absorber integrated structure 1, a wavelength division multiplexer 2, a gain fiber 6, a beam splitter 3 and a highly reflective grating 4 connected in sequence;

[001...

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Abstract

The embodiment of the invention provides a picosecond seed source laser. The picosecond seed source laser comprises a saturable absorber integrated structure, a wavelength division multiplexer, a gainfiber, a beam splitter and a high-reflection grating, all of which are sequentially connected. One end of the gain optical fiber is connected with a signal output leg of the wavelength division multiplexer, and the other end is connected with an input end of the beam splitter. The output port of the saturable absorber integrated structure and a central point of the high-reflection grating are located on the same straight line to form a linear resonant cavity structure. The wavelength division multiplexer guides pump light into a linear resonant cavity structure, and the pump light is used asgain excitation in the linear resonant cavity structure to generate picosecond pulse laser. The beam splitter exports the picosecond pulse laser according to a preset proportion. According to the embodiment of the invention, the saturable absorber integrated structure and the high-reflection grating form the resonant cavity, so that the pump light guided into the cavity excites a gain medium to form excited radiation, and the saturable absorber integrated structure is used for passive mode locking, thereby simplifying the structure of the laser and improving the stability of the pulse seed source.

Description

technical field [0001] Embodiments of the present invention relate to the field of laser technology, in particular to a picosecond seed source laser. Background technique [0002] Fiber lasers have the advantages of good stability, low cost, easy operation, simple and compact structure, high coupling efficiency, good heat dissipation, high conversion efficiency, low threshold, good beam quality and narrow linewidth. Due to these advantages, fiber lasers appear in various application fields, such as microprocessing, laser marking, military applications, medical treatment and other fields. Moreover, ultrashort pulse lasers obtained by mode-locking rare earth-doped fibers have important applications in optical fiber communications, ultrafast lasers, optical fiber sensing, optical information processing, laser guidance, inertial-constrained fast ignition, full-color display, and laser printing. [0003] In the prior art, the mode-locking technologies commonly used in lasers inc...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01S3/11H01S3/08H01S3/067
Inventor 李莎蔡一鸣邓俊杰
Owner WUHAN RAYCUS FIBER LASER TECHNOLOGY CO LTD
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