Volume holographic grating forming device for ultra-short pulsed laser beam

An ultra-short pulse laser, volume holographic grating technology, applied in optics, nonlinear optics, instruments, etc., can solve problems such as no consideration of influence, and achieve the effects of adjustable range, large beam selectivity, and easy operation
CN1808215AInactive Publication Date: 2006-07-26SHANGHAI INST OF OPTICS & FINE MECHANICS CHINESE ACAD OF SCI
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Patent Information

Authority / Receiving Office
CN ยท China
Current Assignee / Owner
SHANGHAI INST OF OPTICS & FINE MECHANICS CHINESE ACAD OF SCI
Publication Date
2006-07-26
Estimated Expiration
Not applicable ยท inactive patent

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Abstract

Disclosed is an ultra-short pulse laser light beam body holographic grating shaping apparatus which includes a for recording the body holographic grating which light axis direction is consistent with the body holographic grating vector, in the incoming direction of pulse laser light beam for shaping in front of the crystal, there is a broad band polarizing spinner; in the crystal transmission light beam direction, there is a second polarizer; in the crystal light beam diffraction direction, there is a third polarizer. Compared with prior technology, the invention can realize pulse laser light beam shaping via modulating the polarization status, and the modulating range can be changed by selecting grating parameter and the shaping range is adjustable.
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Description

technical field

[0001] The invention relates to a pulse laser beam shaping device, in particular to an ultrashort pulse laser beam volume holographic grating shaping device based on volume holographic grating polarization modulation, which can be applied to technical fields such as laser measurement and information processing. Background technique

[0002] With the development of pulsed laser beam generation technology, optical pulse shaping technology, as a supplementary method for ultrashort pulse laser beam generation, provides unprecedented control over ultrashort optical pulse waveforms for ultrafast spectroscopy, nonlinear fiber optics, and strong field physics. means have been extensively studied. People have developed a series of technical methods for optical waveform synthesis or pulse shaping. Among them, for the pulsed laser beam larger than 1ns, it can be directly shaped by the Kerr effect of the electro-optic medium, and for shorter pulses, it can be shaped by ...

Claims

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