Laser regeneration amplifier switch, laser regeneration amplifier and laser

A regenerative amplifier and regenerative amplification technology, applied in lasers, laser parts, laser parts, etc., can solve the problems of increasing cost and increasing device instability, and achieve the effect of reducing the number, high contrast, and improving stability

Inactive Publication Date: 2012-07-11
BEIJING GK LASER TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, for regenerative amplifiers or lasers that include regenerative amplifiers, in order to obtain an ideal laser output, three electro-optical switches (including the first electro-optic switch 2, the second photoelectric switch 3 and the third photoelectric switch 4) must be used together. It can only be realized by working together, which not only increases the cost, but also increases the instability of the device

Method used

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  • Laser regeneration amplifier switch, laser regeneration amplifier and laser
  • Laser regeneration amplifier switch, laser regeneration amplifier and laser
  • Laser regeneration amplifier switch, laser regeneration amplifier and laser

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Embodiment Construction

[0020] It should be understood that the specific embodiments described herein are only used to explain the present invention, but not to limit the present invention.

[0021] refer to figure 2 , the structure of the laser regenerative amplifier switch 10 according to an embodiment of the present invention is proposed. It includes a first photoelectric switch 11 , a second photoelectric switch 12 , an isolator 16 , a first polarizer 13 , a second polarizer 14 , a 1 / 2 wave plate 15 and a first reflector 17 . The MHz-level high repetition frequency seed light output by the mode-locked seed oscillator 30 passes through the first polarizer 13 and the isolator 16 . When the isolator 16 applies a λ / 2 voltage, the seed light pulse passes through the isolator 16 When the deflection direction is rotated by 90°, the seed light is transmitted through the second polarizer 14. When performing pulse single selection, the λ / 2 voltage is applied to both ends of the isolator 16 at a certain f...

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PUM

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Abstract

The invention relates to a laser regeneration amplifier switch, comprising a first photoelectric switch, a second photoelectric switch, an isolator, a first polarizer, a second polarizer, a 1/2 wave plate and a first reflector. The first photoelectric switch is located in an optical channel between the first polarizer and the second polarizer, and the second photoelectric switch is located in an optical channel between the second polarizer and the first reflector. In the invention, the position of the first photoelectric switch in the optical channel is changed to remove one photoelectric switch in comparison with that in the prior art, thereby the amount of the photoelectric switches in the optical channel is reduced and the system stability is improved under conditions that the laser output pulse is ensured to be a single pulse and the laser with stable frequency and high contrast is output.

Description

technical field [0001] The present invention relates to the field of laser technology, in particular to a laser regenerative amplifier switch, a laser regenerative amplifier and a laser. Background technique [0002] like figure 1 As shown, a typical laser regenerative amplifier switch 1 includes a first electro-optical switch 2 and a second electro-optical switch 3 . The MHz-level high repetition frequency laser output from the mode-locked seed oscillator 5 passes through the first electro-optic switch 2 , reduces the repetition frequency to KHz level, and injects it into the regenerative amplifier cavity 6 . The second photoelectric switch 3 is used to control the time that the seed light oscillates and outputs in the cavity. Due to the insufficient extinction ratio of the electro-optic crystal or the low rate of change of the electro-optic driving voltage, sub-pulses often appear at the front or rear of the main pulse output by the regenerative amplifier, which affects ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01S3/02H01S3/063H01S3/139
Inventor 樊仲维闫莹牛岗
Owner BEIJING GK LASER TECH
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