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Double end-face pump secondary harmonic solid laser creating method for superpower semiconductor

A second harmonic and solid-state laser technology, applied in the direction of lasers, laser components, phonon exciters, etc., can solve the problems of second harmonic laser power transient power drop, etc., to avoid astigmatism and ensure stability The effect of durability and prolonging the service life

Inactive Publication Date: 2007-02-28
HANS LASER TECH IND GRP CO LTD
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  • Summary
  • Abstract
  • Description
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  • Application Information

AI Technical Summary

Problems solved by technology

However, there is a problem of nonlinear crystal temperature matching in point-by-point scanning, and the laser mutation occurs instantaneously when the crystal moves, resulting in a sharp drop in the transient power of the second harmonic laser power.

Method used

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  • Double end-face pump secondary harmonic solid laser creating method for superpower semiconductor
  • Double end-face pump secondary harmonic solid laser creating method for superpower semiconductor
  • Double end-face pump secondary harmonic solid laser creating method for superpower semiconductor

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Embodiment Construction

[0021] The principle of the high-power semiconductor double-end pumped second harmonic solid-state laser generation method of the present invention is shown in Figure 1. The oscillator consists of a high-power fiber-coupled laser diode 1, a pump light converging system 2, an infrared total reflection mirror 3, Q switch 4, angle mirrors (5, 7, 8), laser crystal 6, green light output coupling mirror, double frequency nonlinear crystal 9 and two-color total reflection mirror 10 are formed, wherein the angle mirrors (5, 7, 8) are Intracavity small-angle mirrors.

[0022] In order to reduce the inhomogeneity and damage of the laser medium absorption caused by the high-power laser diode single-ended laser crystal, in the present invention, two laser diodes 1 are used to pump simultaneously from the two end faces of the laser crystal 6 respectively, The pump light is uniformly distributed in the laser crystal 6 . According to the characteristics of different laser crystals, as well ...

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PUM

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Abstract

The invention relates to a secondary resonance solid laser generation of high-power semi-conductor dual-end pump. Wherein, it uses optical fiber to couple the laser diode dual-end pump single laser crystal; uses matrix optics to optimize design; uses foldable four-mirror chamber structure with non-focus lens to obtain the infrared laser with high-effect resonance conversion, large base module volume and small light waist diameter; uses non-linear program to design, selects non-critical phase match and right time-frequency crystal size, via time-frequency non-focus method and foldable plane chamber structure, to obtain dual accumulated high powers, high effect single-mode secondary resonance, to be output via angle mirror polarized.

Description

Technical field [0001] The invention relates to a semiconductor end-face pumped second harmonic solid-state laser generation method. Background technique [0002] With the rapid development of laser diodes (Laser Diode), LD pumping technology has been rapidly improved. In recent years, end-pumped lasers (especially end-pumped second-harmonic lasers) have rapidly become popular in laser demonstrations, laser fine-tuning lasers, etc. , optical storage, underwater communication, precision measurement, laser medical processing and other fields are widely used. [0003] Current international sales of end-pumped Q-switched TEMs 00 SHG laser products, such as Evolution-TEM from Coherent Corporation 00 Nd:YLF 15W / 527nm / 5KHZ / 200ns green laser; the maximum average laser power of American Spectrophysics Corporation is 11W / / 50KHZ / 13ns TEM 00 HIPPOH10-532Q green laser; In China, due to the relatively weak system integration capability and achievement industrialization capability of ...

Claims

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Application Information

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IPC IPC(8): H01S3/0941H01S3/16H01S3/109H01S3/08
Inventor 周复正马淑贞吕凤萍陈莉英郑珺晖高云峰
Owner HANS LASER TECH IND GRP CO LTD
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