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Terminal surface pump order variant grade doping composite plate laser amplifier

A laser amplifier, gradient doping technology, applied in lasers, laser parts, phonon exciters, etc., can solve problems such as uneven thermal stress of pumping

Inactive Publication Date: 2009-07-15
SHANGHAI INST OF OPTICS & FINE MECHANICS CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to improve the deficiencies of existing slab laser amplifier pumping unevenness and thermal stress

Method used

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  • Terminal surface pump order variant grade doping composite plate laser amplifier
  • Terminal surface pump order variant grade doping composite plate laser amplifier
  • Terminal surface pump order variant grade doping composite plate laser amplifier

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Embodiment Construction

[0037] The present invention will be further described below in conjunction with the accompanying drawings and embodiments, but the protection scope of the present invention should not be limited thereby.

[0038] see first figure 1 , figure 1 It is a block diagram of the overall structure of the end-pumped gradient-doped composite slab laser amplifier of the present invention. It can be seen from the figure that the end-pumped step-change gradient doped composite slab laser amplifier of the present invention includes: laser gain medium 1, seed source 2, pump sources 3, 4, coupling lens conduits 5, 6, and slab cooling heat sink 7, 8, and indium transition layers 9, 10, which are characterized by:

[0039] The laser gain medium 1 is an N-order gradient doped composite ceramic slab, wherein N is a positive integer greater than 1, see figure 2 , in the figure:

[0040] 1, 0 means the 0th order sub-slat,

[0041] 1, ±i means ±i-th order sub-slats, i=1, 2, 3,..., N;

[0042]...

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Abstract

The present invention discloses an end pumped order variable gradient adulterate composite lath laser amplifier, which comprises a laser gain medium, seed source, pumping source, coupling lens duct, lath cooling heat sink and indium transition layer, characterized in that the laser gain medium is N-order order variable gradient adulterate composite ceramic lath and is composed by 2N+3 segments that is sub-lath in middle section that has highest luminous ion concentration decreases, each N segment sub-lath with luminous ion concentration decreases gradually towards two ends, and sub-lath with zero adulterate on two ends, wherein N is positive integer. The present invention can improve temperature distribution homogeneity and decrease biggest thermal stress, and further realize laser output of high average power and high beam quality.

Description

technical field [0001] The invention relates to an all-solid-state laser device, in particular to an end-pumped laser amplifier with step-change gradient doping composite slabs, which has wide application prospects in laser processing, communication and military affairs. Background technique [0002] With the development of laser technology, there are higher requirements for laser technical indicators. Laser diode pumped slab lasers and amplifiers have become one of the ideal design solutions for high average power and high beam quality lasers due to their structural advantages. The laser amplifier with end-face or side-pumped structure separates the pumping surface from the cooling surface, which can reduce the requirements on the cooling surface and make it easier to achieve high average power output in engineering. Adopting the transmission and amplification of the laser beam along the z-shaped optical path can further reduce the problem of thermal distortion of the laser...

Claims

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Application Information

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IPC IPC(8): H01S3/17H01S3/094H01S3/0941
Inventor 王建磊施翔春朱小磊
Owner SHANGHAI INST OF OPTICS & FINE MECHANICS CHINESE ACAD OF SCI
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