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A Laser Regenerative Amplifier Based on Acousto-optic Effect

A regenerative amplifier, regenerative amplification technology, applied in lasers, phonon exciters, laser parts and other directions, can solve problems such as increasing the complexity of devices, and achieve the effect of flexible and changeable functions

Active Publication Date: 2020-10-30
HUAZHONG UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Aiming at the defects of the prior art, the object of the present invention is to provide a laser regenerative amplifier based on the acousto-optic effect, which aims to solve the problem that the existing regenerative amplification method increases the complexity of the device in order to prevent the optical pulse from returning to the original path

Method used

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  • A Laser Regenerative Amplifier Based on Acousto-optic Effect
  • A Laser Regenerative Amplifier Based on Acousto-optic Effect
  • A Laser Regenerative Amplifier Based on Acousto-optic Effect

Examples

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Embodiment 1

[0039] figure 1 A kind of optical pulse regenerative amplifier based on the acousto-optic effect proposed for embodiment 1, including a laser regenerative amplifier cavity, tellurium oxide acousto-optic beam combiner / beam splitter, Brewster polarizer, Nd:YAG laser working substance;

[0040] Among them, ① is a total reflection mirror; ② is an acousto-optic beam combiner / beam splitter; ③ is an arbitrary waveform signal generator; ④ is a Brewster polarizer (both the first optical branch and the second optical branch are placed); ⑤ is Nd: YAG laser working substance (the first optical branch and the second optical branch are both placed); ⑥ is a total reflection mirror (the first optical branch and the second optical branch are both placed);

[0041] The basic structure of the laser regeneration amplification cavity is "Y" shape, that is, after the beam enters the laser regeneration amplification cavity, there are three parts: the cavity optical trunk, the first optical branch an...

Embodiment 2

[0055] figure 2 An optical pulse regeneration amplifier based on the acousto-optic effect provided for Example 2, including a laser regeneration amplification cavity, an acousto-optic beam combiner / beam splitter of tellurium oxide, a Brewster polarizer, and a Nd:YAG laser working substance;

[0056] Among them, ① is a total reflection mirror; ② is an acousto-optic beam combiner / beam splitter; ③ is an arbitrary waveform signal generator; ④ is a Brewster polarizer (both the first optical branch and the second optical branch are placed); ⑤ is Nd: YAG laser working substance (the first optical branch and the second optical branch are both placed); ⑥ is a total reflection mirror (the first optical branch and the second optical branch are both placed);

[0057] The basic structure of the laser regeneration amplification cavity is "Y" shape, that is, after the beam enters the laser regeneration amplification cavity, there are three parts: the cavity optical trunk, the first optical ...

Embodiment 3

[0071] image 3 An optical pulse regenerative amplifier based on acousto-optic beam combining technology provided for Example 3, including a laser regenerative amplifier cavity, tellurium oxide acousto-optic beam combiner / beam splitter, Brewster polarizer, Nd:YAG laser working material;

[0072] Among them, ① is a total reflection mirror; ② is an acousto-optic beam combiner / beam splitter; ③ is an arbitrary waveform signal generator; ④ is a Brewster polarizer (both the first optical branch and the second optical branch are placed); ⑤ is Nd: YAG laser working substance (the first optical branch and the second optical branch are both placed); ⑥ is a total reflection mirror (the first optical branch and the second optical branch are both placed);

[0073]The basic structure of the laser regeneration amplification cavity is "Y" shape, that is, after the beam enters the laser regeneration amplification cavity, there are three parts: the cavity optical trunk, the first optical branch...

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Abstract

The invention discloses a laser regenerative amplifier based on an acousto-optic effect, and belongs to the field of laser regenerative amplification. The laser regenerative amplifier comprises a laser regenerative amplification cavity, an acousto-optic beam combiner / splitter, an arbitrary waveform signal generator, a first laser working module and a second laser working module. The laser regenerative amplification cavity is used for providing a laser round-trip path to realize laser amplification. The acousto-optic beam combiner / splitter loads sound waves, and light beams generate acousto-optic action with the sound waves through the acousto-optic beam combiner / splitter to realize beam combining or beam splitting. The arbitrary waveform signal generator is used for loading sound waves with a first frequency or a second frequency on the acousto-optic beam combiner / splitter and controlling the transmission direction of light beams. A light beam transmitted on a cavity light trunk has ane polarization state of the acousto-optic beam combiner / splitter, and light beams transmitted on a first light branch and a second light branch have an o polarization state of the acousto-optic beamcombiner / splitter. The problem that an existing regenerative amplifier needs to be provided with a polarization controller to prevent optical pulses from returning along the original path is solved.

Description

technical field [0001] The invention belongs to the field of laser regeneration amplification, and more specifically relates to a laser regeneration amplifier based on the acousto-optic effect. Background technique [0002] The chirped pulse amplification technology that appeared in 1985 increased the peak power of laser pulses, and lasers entered a stage of high-intensity development. Ultrashort pulse and high-energy lasers are now important light sources for strong physical fields. Regenerative amplification technology is to achieve ultrashort pulses with high energy Necessary means of output. [0003] Regenerative amplification technology can use the electro-optic effect or acousto-optic effect to control the entry and exit of light pulses. The electro-optic effect is faster, but the applied voltage is high. At present, the threshold of the low-voltage electro-optic effect is low and is still in the research stage; the acousto-optic effect Compared with the electro-optic...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01S3/081H01S3/10H01S3/102
CPCH01S3/0815H01S3/10023H01S3/1024
Inventor 朱广志陈明翔杨璟朱晓王海林
Owner HUAZHONG UNIV OF SCI & TECH