Laser pulse stretching and compression device

Abstract

This invention relates to a laser pulse expansion and compression device charactering that it is composed of a super-short pulse laser, a chirp control system, an energy control system, a non-linear action system, a dispersion compensation system and a test system, which can either expand spectrums and compress pulses or compress spectrums and expand pulses.

Description

technical field [0001] The invention relates to a strong laser, in particular to a laser pulse stretching and compression device. The device can be applied to biological, physical and chemical research fields such as high-intensity ultrafast laser technology, ultrashort pulse laser micromachining and pump-probe technology. Background technique [0002] In the past few decades, femtosecond pulsed laser technology has achieved tremendous development. Using mode-locking technology and chirped pulse amplification (CPA) technology for titanium-doped sapphire (Ti: sapphire) laser system, it has been possible to obtain tens of femtoseconds, terawatt (TW) level desktop ultra-powerful super short laser pulses. This ultra-intense and ultra-short laser pulse is an important tool in many fundamental studies of high-field laser physics, such as high-order harmonics, plasma channels, and attosecond pulse generation. Researches such as femtosecond chemistry, biomedicine, pump-probe and ...

AI Technical Summary

Problems solved by technology

[0008] It can solve the problems of low conversion efficiency and complex structure in the use of nonlinear crystal stretching pulse technology;

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