Nano second laser pulse regeneration amplifier

A regenerative amplifier and laser pulse technology, applied in the field of lasers, can solve the problems of increasing the difficulty and accuracy of pre-compensation, and achieve the effect of reducing time waveform distortion and low time domain waveform distortion

Inactive Publication Date: 2008-09-10
SHANGHAI INST OF OPTICS & FINE MECHANICS CHINESE ACAD OF SCI
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Problems solved by technology

However, excessive time waveform distortion increases the difficulty and accuracy of pre-compensation

Method used

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  • Nano second laser pulse regeneration amplifier
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Embodiment Construction

[0022] The present invention will be further described below in conjunction with the embodiments and accompanying drawings, but the protection scope of the present invention should not be limited thereby.

[0023] see first figure 1 , figure 1 It is a structural block diagram of the nanosecond laser pulse regeneration amplifier of the present invention. As can be seen from the figure, the nanosecond laser pulse regenerative amplifier of the present invention is composed of a suffix pulse generating unit 24, a regenerative amplifier unit 1 and an electro-optical isolator 2, and the laser pulse with a suffix output by the suffix pulse generating unit 24 passes through the optical fiber 3 It is input to the regenerative amplifier unit 1, and the laser pulse output by the regenerative amplifier unit 1 is output through the electro-optic isolator 2.

[0024] Figure 4 It is a schematic diagram of the suffix pulse generating unit in the present invention. Described suffix pulse ...

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Abstract

The invention relates to a nanosecond laser pulse regenerating amplifier which is characterized in that: the regenerating amplifier comprises a postfix pulse generating unit, a regenerating amplifier unit and an electric light isolator; postfix laser pulses generated by the postfix pulse generating unit are input into the regenerating amplifier unit by optical fibers; the laser pulses are output by the electric light isolator from the regenerating amplifier unit. The nanosecond laser pulse regenerating amplifier reduces the wave distortion of a seed laser pulse after being amplified and can realize pulse amplification of high stability and low time domain wave distortion by inputting postfix laser pulses into the regenerating amplifier unit.

Description

technical field [0001] The invention relates to a laser, in particular to a nanosecond laser pulse regeneration amplifier. It can achieve high stability and high gain amplification, and reduce the time-domain waveform distortion of laser pulses caused by the amplifier gain saturation effect through the method of adding suffix pulses. Background technique [0002] The output laser pulse energy stability of the regenerative amplifier used to amplify the nanosecond laser pulse is contradictory to the time-domain waveform distortion of the output laser pulse. When the gain saturation is not considered, during the multiple amplification process of the laser pulse in the cavity of the regenerative amplifier, the fluctuations introduced by the regenerative amplifier itself are continuously accumulated with the increase of the number of amplification steps. Therefore, with the increase of the number of amplification steps, the output laser Pulse energy stability decreased. However...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01S3/00H01S3/094H01S3/08H01S3/10G02F1/35
Inventor 王江峰李学春朱健强韦辉范薇王艳海鲍岩姜有恩潘雪
Owner SHANGHAI INST OF OPTICS & FINE MECHANICS CHINESE ACAD OF SCI
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