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Diagnosis device and diagnosis method for multi-beam ultra-short pulse time synchronization and phase synchronization

An ultra-short pulse, time synchronization technology, applied in the field of coherent synthesis of multiple ultra-short pulses, to achieve the effect of rapid adjustment and diagnosis

Active Publication Date: 2014-10-08
SHANGHAI INST OF OPTICS & FINE MECHANICS CHINESE ACAD OF SCI
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AI Technical Summary

Problems solved by technology

[0004] At this stage, most of the laser coherent combination of high power and ultrashort pulses is still in the stage of theoretical exploration

Method used

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  • Diagnosis device and diagnosis method for multi-beam ultra-short pulse time synchronization and phase synchronization
  • Diagnosis device and diagnosis method for multi-beam ultra-short pulse time synchronization and phase synchronization
  • Diagnosis device and diagnosis method for multi-beam ultra-short pulse time synchronization and phase synchronization

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Embodiment Construction

[0019] The present invention will be further described below in conjunction with the embodiments and accompanying drawings, but the protection scope of the present invention should not be limited thereby.

[0020] figure 1 and image 3 It is a structural diagram of the time synchronization state and phase synchronization state of the time synchronization and phase synchronization diagnostic device for multi-beam ultrashort pulses of the present invention. Please see first figure 1 , the diagnostic device of time synchronization and phase synchronization of multi-beam ultrashort pulses of the present invention consists of a first reflector 1, a second reflector 2, a phase retarder 3, a time retarder 4, a lens 5, a CCD6, and a concave cylindrical mirror 7 , Autocorrelation signal generator 8, photocell and optical filter 9 and guide rail 10 composition. In the device, two beams of ultrashort pulses to be tested are taken as an example for illustration. The first beam of ultr...

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Abstract

The invention provides a diagnosis device and a diagnosis method for multi-beam ultra-short pulse time synchronization and phase synchronization. The diagnosis device consists of a first reflecting mirror, a second reflecting mirror, a phase delayer, a time delayer, a lens, a CCD, a concave cylindrical mirror, a self-coherent signal generator, a phototube, an optical filter and a guide rail, wherein the sequential concave cylindrical mirror, the self-coherent signal generator, the phototube and the optical filter form a self-coherent detection module, the CCD is a phase detection module, and the self-coherent detection module and the phase detection module are fixed on a flat plate in a paratactic mode. The diagnosis device and the diagnosis method can achieve a time synchronization and phase synchronization diagnosis function during multi-beam petawatt laser synthesis and have important guiding and monitoring effects on high-energy petawatt laser output.

Description

technical field [0001] The invention relates to the coherent synthesis of multi-beam ultrashort pulses, in particular to a time-synchronous and phase-synchronous diagnosis device and method for multi-beam ultrashort pulses. Background technique [0002] In some important applications of ultrashort laser pulses, such as physical experiments on the interaction between ultrashort laser pulses and matter, and fast ignition experiments in inertial confinement fusion, the output power of a single laser has a limit and cannot meet the experimental requirements. The coherent combination of ultrashort pulses in the far field is an effective way to obtain high-energy and ultra-high power density focal spots. In order to obtain a focal spot with regular shape and high energy concentration, it is required that the beams meet the time synchronization and phase synchronization during the coherent combination process. [0003] In 2009, K.L.Baker et al. built an interference adaptive optic...

Claims

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Application Information

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IPC IPC(8): G01J9/04
Inventor 王杨欧阳小平朱宝强
Owner SHANGHAI INST OF OPTICS & FINE MECHANICS CHINESE ACAD OF SCI
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