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Large power multipath gauss laser beam optical fibre light splitting method and its equipment

A laser beam, high-power technology, applied in the beam optical fiber, optics, nonlinear optics and other directions, can solve the problems of inappropriate high-power laser applications, inconvenient beam direction guidance, and bulky volume, etc., to achieve simple structure and easy docking. , the effect of small system size

Inactive Publication Date: 2008-06-04
XIAN MICROMACH TECH CO LTD
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Problems solved by technology

[0013] The purpose of the present invention is to provide a high-power multi-channel Gaussian laser beam optical fiber splitting method and its equipment, which solves the problem of large volume, high cost, few optical paths, inconvenient beam direction guidance, short transmission distance and inapplicability in the background technology. Technical Problems in High Power Laser Applications

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  • Large power multipath gauss laser beam optical fibre light splitting method and its equipment
  • Large power multipath gauss laser beam optical fibre light splitting method and its equipment
  • Large power multipath gauss laser beam optical fibre light splitting method and its equipment

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Embodiment Construction

[0048] see figure 1 , The device of the present invention is mainly composed of a beam expander 2, a beam homogenizer 3 and a bundled optical fiber beam splitter 4. The input end of the beam expander 2 is a laser 1, and the laser 1 is a continuous laser or a pulsed laser, and a fiber laser can also be used as a trigger source to realize coupling with the latter. The output end of the beam expander 2 is provided with a beam homogenizer 3 , and the output of the beam homogenizer 3 is optically coupled and connected to the bundled optical fiber beam splitter 4 .

[0049] see figure 2 , the optical fibers in the optical fiber bundle 5 are closely arranged in a hexagonal manner inscribed in a circle, and this arrangement can make the optical fibers closely arranged. The number M of optical fibers arranged is:

[0050] M=3×(N 2 -N)+1

[0051] In the formula, N is the number of optical fiber layers arranged.

[0052] The characteristics of the optical fibers selected for the b...

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Abstract

The present invention expands the beams of gaussian distribution laser beams output by a laser through a light beam expander, then uses a light beam homogenizer to convert the laser beams with spatial energy in gaussian distribution into the laser beams with spatial energy in flat top distribution, and finally uses optical fiber beam splitters to execute multi-channel light distribution to homogenized laser. Adjusting the optical fiber length of each optical fiber beam splitter can control the phase output by each laser beam, so as to make the output laser beams inphase and synchronous. The present invention solves the technical problems that the prior art is huge in volume, high in cost, less in light path numbers, inconvenient to guide light beam direction, short in transmission distance and inapplicable to high-power laser occasions. The present invention is uniform in light distribution, optional in laser output positions, flexible and convenient to use, and capable of realizing hundreds or thousands of channels of the output phase uniform in energy or the laser output with fixed phase delay. The present invention can be used for high-power laser continuous type and pulse type laser light beam distribution and combination, and is especially applicable to the fields such as national defense electronic countermeasure and target recognition.

Description

technical field [0001] The invention relates to an optical fiber splitting method and equipment for splitting and multi-channel light control of laser light, in particular to a high-power multi-channel Gaussian laser beam optical fiber splitting method and equipment. Background technique [0002] Many laser technology applications require multiple lasers to work at the same time, and each laser has a certain energy and a certain phase relationship according to the application requirements. [0003] It is very costly to realize multi-channel laser with multiple lasers, and it is also difficult to realize the phase control of each laser output laser. Therefore, one more high-power laser output is used, and then the splitting technology is used to realize multi-channel splitting. [0004] Traditional energy splitting generally uses optical beam splitters, which are composed of lenses coated with a semi-transparent and semi-reflective film on the surface. After the laser beam ...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02F1/35G02B6/26G02B6/04
Inventor 阮驰赵卫陈国夫
Owner XIAN MICROMACH TECH CO LTD
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