All-solid-state dual-wavelength ultrafast laser and working method thereof

Abstract

The invention provides an all-solid-state dual-wavelength ultrafast laser, comprising a seed light source as well as a multi-pass amplifying module and a dual-wavelength switching module connected with the seed light source, wherein the multi-pass amplifying module comprises three 45-degree reflectors, a polarizer, four crystals, four faraday rotators, a 1/2 wave plate and two pumping sources; the dual-wavelength switching module comprises a 1/2 wave plate, a polarizer, a KTP (Potassium Titanyl Phosphate) crystal, a spectroscope, an ABS (Acrylonitrile Butadiene Styrene) absorber; an electromagnetic valve is arranged on the 1/2 wave plate, and an external control circuit controls the 1/2 wave plate via the electromagnetic valve to realize dual-wavelength external switching and control. The all-solid-state dual-wavelength ultrafast laser has the advantages: a dual-pumping module is adopted in the traditional scheme, and beams are transmitted single times in lean body weight, so the amplification factor is limited, whereas a multi-pass amplification technology is adopted in this scheme, energy can be effectively amplified multiple times, and the utilization rate of the energy can be imrpoved.

Description

technical field [0001] The invention relates to an all-solid-state dual-wavelength ultrafast laser, and also relates to a working method of the above-mentioned laser. Background technique [0002] Based on the requirements of high peak power of all-solid-state ultrafast lasers in industrial processing and medical clinics, the present invention proposes an implementation scheme of all-solid-state ultrafast lasers, which mainly solves the problem of low laser power and high energy efficiency under ultra-short pulse width conditions. weak issues. Contents of the invention [0003] The technical problem to be solved by the present invention is to overcome the above-mentioned deficiencies in the prior art, and provide an all-solid-state dual-wavelength ultrafast laser and its working method. [0004] According to the main technical scheme adopted by an all-solid-state dual-wavelength ultrafast laser provided by the present invention, it includes a seed light source and a multi...

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Problems solved by technology

[0002] Based on the requirements of high peak power of all-solid-state ultrafast lasers in industrial processing and medical clinics, the present invention proposes an implementation scheme of all-solid-state ultrafast lasers, which mainly solves the problem of low laser power and high energy efficiency under ultra-short pulse width conditions. Weak and other issues

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