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Ultra-high average power optical parameter chirped pulse amplifier

A chirped pulse and average power technology, which is applied in the field of ultra-high average power optical parametric chirped pulse amplifiers, and can solve problems such as difficulty in increasing the average power of chirped pulse amplifiers.

Inactive Publication Date: 2018-10-12
SHANGHAI JIAO TONG UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0008] The purpose of the present invention is to solve the problem that the average power of the traditional optical parametric chirped pulse amplifier is difficult to increase, and to provide an ultra-high average power optical parametric chirped pulse amplifier

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  • Ultra-high average power optical parameter chirped pulse amplifier

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Embodiment Construction

[0043] The present invention will be further described below in conjunction with the accompanying drawings and examples.

[0044] figure 1 (a) Schematic diagram of the beam of a non-collinear optical parametric chirped pulse amplifier. Since the lithium triborate crystal (namely LBO) has the advantages of high damage threshold and small space walk-off effect, in this embodiment, we choose LBO as the crystal in the non-collinear configuration parametric chirped pulse crystal amplifier 14 . Such as figure 1 As shown in (b), since the non-collinear angle has the ability to adjust the phase matching, the amplifier is insensitive to wavelength or temperature. However, these two phase-matching properties can only be realized under different non-collinear angles in general. In the present invention, since the temperature of the amplifier is optimally designed, the non-collinear angles corresponding to the two states can be adjusted accordingly. Under the set optimal amplifier tem...

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Abstract

Disclosed is an ultra-high average power optical parameter chirped pulse amplifier. The ultra-high average power optical parameter chirped pulse amplifier comprises a pumped light path, a signal lightpath, a temperature control furnace and an amplifier; the amplifier is a non-collinear configuration parameter chirped pulse crystal amplifier and placed in the temperature control furnace; the temperature control furnace controls the temperature of the amplifier to be an optimized temperature of greater than 320K; a reflective mirror is adjusted to enable a light beam of chirped signal pulse output by the signal light path and a light beam of pumped pulse output by the pumped light path to come to the amplifier at a non-collinear angle of 3.5-4.0 angles; and the amplified chirped pulse signal passes through a pulse compressor to output ultra-short-pulse laser of ultra-high average power and ultra-high peak power. The ultra-high average power optical parameter chirped pulse amplifier hasthe characteristics of simpler structure and nonsensitivity to both of temperature and wavelength, and is an efficient and promising chirped pulse amplifier.

Description

technical field [0001] The invention belongs to the field of laser technology, in particular to an ultra-high average power optical parametric chirped pulse amplifier. Background technique [0002] Nowadays, optical parametric chirped pulse amplification technology has become an effective technology for generating ultra-high power and ultra-short pulse width laser pulses. The basic principle of optical parametric chirped pulse amplification technology can be divided into the following three links in turn: [0003] (1) Pulse stretching: using a grating stretcher to stretch the ultrashort pulse to a chirped pulse with a long pulse width; [0004] (2) Pulse amplification: use non-collinear configuration parametric chirped pulse crystal amplifier to amplify the chirped pulse with long pulse width, so that the energy of the pump pulse continuously flows to the chirped pulse and generate idler pulse at the same time; [0005] (3) Pulse compression: use a grating compressor to co...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01S3/10H01S3/11
CPCH01S3/10007H01S3/10023H01S3/11G02F1/353G02F1/3544G02F1/37G02F1/39G02F1/3503G02F1/3528G02F1/354G02F1/3546G02F1/392G02F1/3501H01S3/10053H01S3/1611H01S3/1643H01S3/1673H01S3/2316H01S3/235
Inventor 钱列加唐道龙王静马金贵周冰洁袁鹏谢国强
Owner SHANGHAI JIAO TONG UNIV
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