Independent chirp parameter regulating system for realizing two-tone laser field

An independent adjustment, laser technology, applied in lasers, laser parts, phonon exciters, etc., can solve the problem of inability to independently adjust the chirp parameters of two light sources, and achieve precise and real-time control of spectral forms, stable results, and structural simple effect

Active Publication Date: 2011-11-23
UNIV OF SHANGHAI FOR SCI & TECH
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Problems solved by technology

[0003] The invention discloses an independent adjustment system for realizing the chirp parameters of the two-color laser field, and aims to overcome the shortcomings of the prior art that the chirp parameters of the two light sources cannot be independently adjusted while using the two-color laser field to generate ultraviolet spectra

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  • Independent chirp parameter regulating system for realizing two-tone laser field
  • Independent chirp parameter regulating system for realizing two-tone laser field

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Embodiment Construction

[0015] The present invention will be described in detail below in conjunction with the accompanying drawings and embodiments.

[0016] An independent adjustment system for chirp parameters that realizes a two-color laser field. The structure is shown in Figure 1. It consists of a beam splitter 10, two pulse compressors 5, two hollow fiber stretching and compression systems 8, and a mirror delay system. 12 components, a beam splitter 10 is inserted at the entrance of the pulse compressor 5 of the femtosecond laser, and the light source is divided into two beams, wherein the first beam of light directly enters a set of pulse compressor 5, hollow fiber stretching and compression system 8, and the other A beam of light enters another set of pulse compressor 5, hollow fiber stretching and compression system 8 after passing through the plane mirror B, and then passes through the mirror delay system 12 and the frequency doubling crystal 13, and the two beams of light pass through a be...

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Abstract

The invention relates to an independent chirp parameter regulating system for realizing a two-tone laser field. A beam splitting piece which is inserted into an entrance of a pulse compressor of a femtosecond pulse laser divides a light source into two beams of light; the first beam of light enters into one pulse compressor and a hollow optical chirp system, and the other beam of light passes through a plane mirror B and enters into the other pulse compressor and the other hollow optical chirp system; the two beams of light are synthetized into one beam of light after passing through a reflector delayed time system and a frequency doubling crystal; and the synthesized beam of light passes through a reversible plane mirror and then is connected with a higher-order harmonic generating and detecting device and a spectrum phase interferometry instrument respectively so as to form the independent chirp parameter regulating system for realizing the two-tone laser field. The independent chirp parameter regulating system can carry out independent pulse compression on light with amplified energy in a femtosecond amplifier so as to acquire two beams of laser light sources capable of independently regulating the chirps; and the independent chirp parameter regulating system is simple in structure and easy to operate.

Description

technical field [0001] The invention relates to a system for independently adjusting chirp parameters for realizing a two-color laser field. It can be used in a two-color laser field or a period-level two-color laser field to realize independent adjustment of the chirp parameters of the two light sources. Background technique [0002] In the existing two-color laser field system, after the pulse compressor of the femtosecond laser amplifier, the light source is divided into two beams, and one beam is frequency-multiplied and then combined with the other beam to form a two-color field. Since the parameters of intensity, wavelength, polarization, and time-delay coincidence of the two beams of light can be adjusted separately, this dual-color field method is widely used in the process of generating ultraviolet precision spectra with high-order harmonics. However, this method uses the light source output by the same pulse compressor, and the amount of chirp contained in the lig...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01S3/00H01S3/10
Inventor 彭滟朱亦鸣曹剑炜秦汉张冬生陈麟庄松林
Owner UNIV OF SHANGHAI FOR SCI & TECH
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