A laser coherent beam combining coupling resonator with polarization diffraction grating

A diffraction grating, coupled resonance technology, applied in the field of lasers, can solve the problems of low output power and low conversion efficiency, and achieve the effects of improving conversion efficiency, being beneficial to output, and reducing volume

Active Publication Date: 2022-02-15
HUAZHONG UNIV OF SCI & TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] In view of the above defects and improvement needs of the prior art, the present invention provides a high-power, high-beam-quality laser coherent beam combining coupling resonator, aiming to solve the problems of low output power and low conversion efficiency in the beam combining system

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  • A laser coherent beam combining coupling resonator with polarization diffraction grating
  • A laser coherent beam combining coupling resonator with polarization diffraction grating

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Embodiment Construction

[0031] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention. In addition, the technical features involved in the various embodiments of the present invention described below can be combined with each other as long as they do not constitute a conflict with each other.

[0032] In the embodiment of the present invention, the working mode of the laser coherent beam combining coupling resonator using the polarization diffraction grating provided by the present invention is as follows:

[0033] see figure 1 , figure 2As shown, it can be seen from the figure that in this embodiment, the laser coherent beam combining resonator of the polarization diffraction grati...

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Abstract

The invention discloses a laser coherent beam combining coupling resonator of a polarization diffraction grating, which includes a semiconductor laser, a gain unit, a polarization diffraction grating, a reflection mirror, and an output mirror. The coupling resonator includes a gain unit, a polarization diffraction grating, a reflection mirror and The output mirrors are distributed at both ends of the coherent beam combining system; the semiconductor laser is the pump light, and its central wavelength matches the absorption line of the gain unit in the resonator; the polarization diffraction grating is a beam splitting / combining device, and its theoretical beam splitting / The beam combining efficiency reaches 99%. The invention can overcome the thermal effect and nonlinear effect caused by the increase of the output power of the traditional laser system, and the high efficiency of the grating device can reduce the cost and volume of the coherent beam combining system, and can realize high power and high beam combining efficiency at the same time Laser output.

Description

1. Technical field [0001] The invention belongs to the field of laser technology and relates to a laser coherent beam combining coupling resonator of a polarization diffraction grating, in particular to a laser coherent beam combining coupling resonator with high beam combining efficiency and high coherence. 2. Background technology [0002] With the development of industry and military technology, higher and higher requirements are put forward for the output energy and beam quality of high-energy lasers. With its advantages of monochromaticity, directionality and coherence, laser has played a pivotal role in the fields of industry, agriculture, military, medical treatment and technological innovation, and these applications require lasers with high power and high beam quality . Based on the above requirements, a laser coherent beam combining coupling resonator with polarization diffraction grating is proposed. [0003] The current dynamics and main problems of laser coher...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01S3/082H01S3/0941
CPCH01S3/0826H01S3/0941
Inventor 万辰皓肖建高郭海平陈念唐霞辉
Owner HUAZHONG UNIV OF SCI & TECH
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