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Self-Raman frequency conversion self-mode locking solid laser

A solid-state laser, self-mode-locking technology, applied in the structure/shape of the active medium, active medium materials, etc., can solve the problems of limited application fields and inability to generate ultra-short pulsed lasers

Inactive Publication Date: 2011-11-16
SHENZHEN UNIV
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Problems solved by technology

[0005] The object of the present invention is to provide a solid-state laser, aiming to solve the problem that the solid-state laser using Raman crystals provided by the prior art cannot produce laser with ultrashort pulses and has limited application fields

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  • Self-Raman frequency conversion self-mode locking solid laser
  • Self-Raman frequency conversion self-mode locking solid laser

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Embodiment Construction

[0015] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with 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.

[0016] The present invention adopts the vanadate crystal doped with rare earth ions as the working medium of the resonant cavity, and sets the front and rear light-passing surfaces of the laser gain medium to be non-perpendicular to the laser light path. While the incident laser produces the stimulated Raman scattering effect, it can also produce a strong Kerr lens effect, thereby obtaining a laser with ultrashort pulses.

[0017] figure 1 The principle structure of the solid-state laser provided by the present invention is shown, and for the convenience of description, only the parts related to t...

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Abstract

The invention is applied in the technical field of laser designing, and provides a self-Raman frequency conversion self-mode locking solid laser, which takes a rare earth ion-doped vanadate crystal as a laser gain medium. The laser comprises a pump source and a resonant cavity. The laser gain medium is arranged in the resonant cavity, and is the rare earth ion-doped vanadate crystal. The front and rear light passing surfaces of the laser gain medium are not vertical to a laser light path. Base frequency laser generated by a laser medium is converted into first-order Stokes ultrashort pulse Raman laser by own stimulated Raman scattering and self-mode locking characteristics at the same time of being oscillated in the resonant cavity. The self-Raman frequency conversion self-mode locking solid laser has the advantages of simple and compact structure, high efficiency, high beam quality, stable and reliable performance, high cost performance and the like, and can be applied in the fields of seed sources of ultrashort pulse laser amplifiers, production of yellow ultrashort pulse laser and ultrashort pulse laser with other wavelengths, and the like.

Description

technical field [0001] The invention belongs to the technical field of laser design, and in particular relates to a solid-state laser and a resonant cavity thereof. Background technique [0002] Solid-state lasers refer to lasers that use solid-state laser materials as the working substance of the resonator, and are widely used in military, processing, medical and scientific research fields. [0003] As an important branch of the field of laser and nonlinear optics, the application of optical frequency conversion technology can effectively expand the output laser spectrum of the laser, thereby further broadening the application field of the laser. Among them, the stimulated Raman scattering (Stimulate Raman Scattering, SRS) technology of the Raman medium has attracted a lot of attention due to its advantages of high efficiency, improved beam quality, and no need for phase matching. The laser spectrum after being dispersed by the Raman medium extends from ultraviolet to near...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01S3/16H01S3/06
Inventor 杜晨林于永芹阮双琛
Owner SHENZHEN UNIV
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