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A high power narrow linewidth full solid state pulse 910nm laser system

A laser system and narrow linewidth technology, applied in the field of lasers, can solve the problems of not being able to further improve the pump light absorption efficiency, affect the output beam quality, and low output power, achieve narrow linewidth, high beam quality, and improve absorption efficiency effect

Inactive Publication Date: 2008-12-10
SHANGHAI INST OF OPTICS & FINE MECHANICS CHINESE ACAD OF SCI
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Problems solved by technology

[0004] Ti:Sapphire laser resonators generally adopt straight cavity and ring cavity, but in the straight cavity, the quality of the output beam is seriously affected due to the phenomenon of space burnout.
However, the generally used annular cavity cannot further improve the absorption efficiency of pump light, resulting in relatively low output power, which cannot meet the needs of some practical applications.

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  • A high power narrow linewidth full solid state pulse 910nm laser system
  • A high power narrow linewidth full solid state pulse 910nm laser system

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Embodiment Construction

[0018] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0019] see first figure 1 and figure 2 ,Depend on figure 1 and figure 2 It can be seen that the high-power narrow-linewidth all-solid-state pulse 910nm laser system of the present invention includes a laser pump system, a Ti:sapphire laser resonator IV and an external cavity seed light injection system V, and the Ti:sapphire laser resonator IV is sequentially A four-mirror annular cavity structure consisting of an input and output plane mirror 1, a first plane mirror 2, a concave mirror 4 and a second plane mirror 3 is respectively placed on the two optical arms of the concave mirror 4 The first titanium sapphire crystal 5 and the second titanium sapphire crystal 6, the laser pumping system is composed of two sets of Q-switched Nd:YAG laser I, frequency doubler II and pump beam shaping and coupling system III, its output The 532nm pumping light is...

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Abstract

The related high-power narrow-linewidth full-solid impulse 910nm laser system comprises: a laser pumping system included a tuning-Q Nd:YAG laser and a frequency multiplier and a pumping beam shaping / coupling system to output 532nm pumping light, a Ti laser resonant cavity, and an outside-cavity feed light injection system contained a 910nm laser diode. Wherein, the Ti resonant cavity comprises in turn an I / O plane mirror, a first reflector, a concave reflector with two Ti crystals on light arms, and a second reflector. This invention is compact, reliable, and high efficient.

Description

technical field [0001] The invention relates to a laser, in particular to a high-power narrow-linewidth all-solid-state pulse 910nm laser system. Background technique [0002] Blue-green laser has great potential in underwater communication and ocean detection. In order to reduce the solar background, it is hoped that the wavelength of the emitting light source can correspond to the wavelength of 455nm of the cesium (Cs) atomic filter, and has better beam quality and higher laser energy. In laser-to-underwater target communication and differential absorption radar, not only a high-energy laser with stable wavelength is required, but also a small divergence angle of the laser beam is required, and the laser spot should be as uniform as possible. [0003] One of the more convenient ways to obtain efficient, stable and reliable 455nm laser output is through frequency doubling, which requires a laser with an output of 910nm wavelength. Titanium sapphire crystal has excellent p...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01S3/08H01S3/094H01S3/0941H01S3/109H01S3/127H01S3/16H01S3/00
Inventor 冯永伟朱小磊戎善奎
Owner SHANGHAI INST OF OPTICS & FINE MECHANICS CHINESE ACAD OF SCI