Amplifier structure

An amplifier and seed technology, applied in the field of lasers, can solve the problems of affecting extraction efficiency, difficult adjustment, unfavorable microchipping, etc., and achieve the effects of easy microchipping, reduced manufacturing difficulty, and reasonable structure

Inactive Publication Date: 2014-07-23
SHANGHAI BRANCH FUZHOU GAOYI COMM CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, this structure is more complicated and difficult to adjust, which is not conducive to microchips, which in turn affects the further improvement of extraction efficiency.

Method used

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  • Amplifier structure
  • Amplifier structure

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Embodiment Construction

[0021] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0022] Such as figure 2 As shown, the amplifier structure includes an LD array 101, a pump light source coupling system 102, a laser gain medium 103, a seed light source 104, a collimator 106, a polarization device 105, three right-angle reflective prisms 107-109, and a 1 / 4 wavelength plate 110, total reflection mirror 111, polarizing device 105 is positioned between seed light source 104 and laser gain medium 103, and the seed light that seed light source 104 outputs enters laser gain medium 103 after polarizing device 105; Described first rectangular reflective prism 107, The second right-angle reflective prism 108 and the third right-angle reflective prism 109 are located on the reflected light path of the seed light reflected by the laser gain medium, and the light reflected by the third right-angle reflective prism 109 is successively arr...

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Abstract

The invention discloses an amplifier structure. The amplifier structure comprises an LD array, a pump light source coupling system, a laser gain medium and a seed light source. The amplifier structure is characterized by further comprising a polarizing device and N right angle reflection prisms, wherein N is equal to or greater than 1. The polarizing device is disposed between the seed light source and the laser gain medium; the seed light output by the seed light source passes through the polarizing device, then enters the laser gain medium and is reflected through the laser gain medium; and the right angle reflection prism is disposed on a reflection light path of the seed light reflected by the laser gain medium. By using the scheme provided by the invention, the amplifier structure can enable the seed light to pass through the laser gain medium for multiple times so as to extract a majority of energy and realize effective amplification; and the other advantages are as followings: the structure is reasonable and simple, the energy extraction rate of the laser gain medium can be improved, the process manufacturing difficulty can be reduced, the adjustment is easy, miniaturization and thinning are easy, and the like.

Description

technical field [0001] The invention relates to the field of lasers, in particular to an amplifier structure. Background technique [0002] With the development of laser technology, people have higher and higher requirements on the output energy of lasers, and at the same time, laser devices are gradually developing in the direction of compact structure. The LD-pumped solid-state laser amplifier is that the pump light enters the laser gain material and generates gain in the laser gain material. Using this mechanism, the power amplification of the seed light or signal light can be realized. However, due to reasons such as unreasonable configuration of the amplifier structure, the energy extraction efficiency of the seed light is not high, and the magnification is limited. [0003] In traditional end-pump amplifiers, since the side of the laser working medium close to the pump source is coated with a reflective film with the same wavelength as the amplified laser, the amp...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01S3/0941H01S3/081H01S3/16G02F1/39
Inventor 吴砺贺坤校金涛
Owner SHANGHAI BRANCH FUZHOU GAOYI COMM CO LTD
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