Short-pulse laser coherent combining system

A short-pulse laser and coherent combination technology, which is applied in lasers, laser components, optics, etc., can solve the problem of low measurement accuracy and achieve the effect of high measurement accuracy and large dynamic measurement range

Inactive Publication Date: 2015-04-22
LASER FUSION RES CENT CHINA ACAD OF ENG PHYSICS
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Problems solved by technology

[0004] In order to overcome the shortcomings of low measurement accuracy caused by traditional measur

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  • Short-pulse laser coherent combining system

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[0013] The following examples are used to illustrate the present invention, but not to limit the present invention. Persons in the relevant technical field can make various changes, substitutions and modifications without departing from the spirit and scope of the present invention. Therefore, equivalent technical solutions also belong to the scope of the present invention.

[0014] Such as figure 1 As shown, the system of a short-pulse laser coherent synthesis method of the present invention includes an error detection unit 1, a signal processing unit 2 and an error compensation unit 3. The error detection unit 1 is used for real-time detection of the cross-correlation signal and interference light of the short pulse laser Strong signal, the detected cross-correlation signal and interference light intensity signal are sent to the signal processing unit 2; the signal processing unit 2 is used to process the cross-correlation signal and the interference light intensity signal to o...

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Abstract

The invention provides a short-pulse laser coherent combining system which comprises an error detection unit, a signal processing unit and an error compensation unit. The error detection unit is used for detecting cross-correlation signals and interference light intensity information of short-pulse laser in real time, and the signal processing unit is used for processing the cross-correlation signals and the interference light intensity information to obtain control signals required by compensating errors; the error compensation unit is used for generating the corresponding action under the action of control signals and compensating the errors between the short-pulse laser in real time so that the co-phase output of the short-pulse laser is realized. The short-pulse laser coherent combining system provided by the invention can be used for the coherent combination of the short-pulse laser, obtaining the laser with ultra-high power density, and creating conditions for substance characteristic studies under extreme conditions and high-field physics experiments.

Description

technical field [0001] The invention relates to a short-pulse laser coherent synthesis system, in particular to realize real-time detection and control of errors by using cross-correlation signals and interference light intensity information of the short-pulse laser. Background technique [0002] The short-pulse laser has short duration and concentrated energy, and can provide instantaneous ultra-high power density and super-strong electromagnetic field, which provides a powerful means for research in many frontier scientific fields. Due to the limitations of the physical properties of the material, pumping technology, nonlinear effects, etc., the output energy of a single short-pulse laser will be limited to a certain extent. In order to solve this problem and obtain higher focused power density, it is necessary to use multiple short-pulse lasers for coherent combination. [0003] When performing coherent combination of short-pulse lasers, it is necessary to precisely meas...

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Application Information

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IPC IPC(8): H01S3/10G02B27/10
Inventor 母杰王逍朱启华景峰李志林左言磊粟敬钦周凯南张军伟周松谢娜蒋东镔
Owner LASER FUSION RES CENT CHINA ACAD OF ENG PHYSICS
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