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The Research on High-Power CW Green Laser

Author: WangZhanZuo
Tutor: YuYiZhong
School: Tianjin University
Course: Photonics technology
Keywords: Folded cavity Intracavity doubling Stability Continuous green laser
CLC: TN248
Type: Master's thesis
Year: 2007
Downloads: 138
Quote: 0
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Abstract


Solid-state diode-pumped laser TV is the use of solid-state laser material , produce red , green , and blue wavelengths as a color laser TV continuous laser light source through a television signal to control three -color laser scanning images. As for the pump laser crystal semiconductor laser output power increases and the frequency doubling crystal in nonlinear optical materials mature, solid-state green laser developed very rapidly . To increase the display brightness of laser television , it is necessary to increase the light output power of the green laser . The research work is focused on continuous high-power solid-state green laser 0.532μm theoretical and experimental research, content and innovative points can be summarized as follows: an overview of the working principle of laser TV , the development of solid-state lasers , characteristics, semiconductor side pump technology, and research papers are all solid-state green laser development . 2 , considering the Nd: YAG thermal effects , calculated by the derivation of Nd: YAG rod thermal lens focal length f and LD pump power Pin relationships and Nd: YAG rod thermal lens focal length f and the relationship between physical quantities β , where β and class lens coefficient. The measured by Nd: YAG module drive current I and the thermal lens focal length f of the correspondence curve , and thus to obtain the driving current I and the physical relationship between β . 3 , the experimental three- mirror folded cavity structure deduced three mirror folded cavity transfer matrix , and use G parameter method discussed three mirror folded cavity chamber stability and the relationship of each parameter . Experimental optimization and adjustment of the parameters , the drive current value of the physical quantity corresponding β satisfy the range of cavity stability condition . In the module when the drive current of 21.4A , get power up to 15W of continuous output of green light - optical conversion efficiency of 9.7%.

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CLC: > Industrial Technology > Radio electronics, telecommunications technology > Photonics technology,laser technology > Laser technology, the maser > Laser
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