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Semiconductor laser pumping double-channel passive Q regulation pulse sum frequency laser

A laser pumping and laser technology, applied in the laser field, can solve problems such as single luminous wavelength, difficulty in controlling light gain, and reduced luminous efficiency, and achieve high pumping efficiency and output peak power, overlapping in time and space Full, easy-to-buff effects

Inactive Publication Date: 2006-11-29
CHANGCHUN UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

In addition, this solution has only one channel, which makes it difficult to control the gain of light, thus reducing the luminous efficiency; this solution has only one gain medium, and the luminous wavelength is single

Method used

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  • Semiconductor laser pumping double-channel passive Q regulation pulse sum frequency laser
  • Semiconductor laser pumping double-channel passive Q regulation pulse sum frequency laser

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Experimental program
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Embodiment Construction

[0009] See figure 2 Shown, the laser of the present invention consists of semiconductor lasers 10 and 18, optical coupling systems 11 and 19, reflective cavity mirrors 12 and 20, gain media 13 and 21, passive Q-switching crystals 14 and 22, and beam mirror 15, and frequency crystal 16 And output mirror 17 composition. Among them, the reflective cavity mirrors 12 and 20 are plano-concave mirrors, and the preparation of the concave film system requires the wavelength λ 1 and lambda 2 The two wavelengths have a reflectivity greater than or equal to 99.5%, and at the same time, it is required that both sides of the reflective cavity mirrors 12 and 20 have a transmittance greater than or equal to 92% for the pumping wavelengths emitted by the semiconductor lasers 10 and 18 . The types of gain media 13 and 21 can be the same or different; the gain media 13 and 21 respectively select different laser transition lines, and the corresponding oscillation wavelength is λ 1 and lambda ...

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Abstract

This invention relates to a semiconductor laser pump double-channel passive Q modulation pulse sum frequency laser, in which, a reflection cavity mirror and an output mirror constitute a first sub-resonant cavity, another reflection cavity mirror and an output mirror and a beam mirror make up of a second sub-resonant cavity and the two sub-resonant cavities have their own light transmission channels separately and passive Q modulation elements are selected, two kinds of gain medium and two resonant cavities are adjusted separately to reduce the difficulty of adjustment and the basic frequency beams of the two sub-resonant cavities are laminated fully on time and space so as to obtain the maximum pump efficiency and output peak value power.

Description

technical field [0001] The invention relates to a semiconductor laser-pumped solid-state laser for obtaining pulse sum-frequency laser output, and belongs to the field of laser technology. Background technique [0002] With the continuous development of laser technology, its application fields are becoming more and more extensive, and at the same time, the requirements for laser parameters are getting higher and higher. In order to obtain high peak power, Q-switching technology is required. Q-switching technology includes rotating mirror Q-switching, dyeing Q-switching, electro-optic Q-switching, acousto-optic Q-switching, etc. At present, the most commonly used Q-switching methods are acousto-optic Q-switching and electro-optic Q-switching. Acousto-optic Q-switching works stably. Generally, the pulse width can reach tens of ns, and the frequency is not higher than 50KHz. The advantage of electro-optic Q-switching is that it can obtain narrower optical pulses. And higher r...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01S3/00H01S3/0941H01S3/05H01S3/08H01S3/06H01S3/127H01S3/108
Inventor 吕彦飞张喜和姚治海卢俊李昌立
Owner CHANGCHUN UNIV OF SCI & TECH