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《Semiconductor Optoelectronics》 2005-01
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Active Phase-locked Technology of Laser Arrays

ZHANG Rong-zhu~1, YANG Chun-lin~2(1. School of Electronics Information, Sichuan University,Chengdu 610064,CHN;2. Chengdu Fine Optical Engineering Research Center,Chengdu 610041,CHN)  
To get high power laser output with good beam quality,a new phase-locked technology is proposed based on the study of the statistic characteristics of the laser.Compared with the traditional phase-locked technique,one control system has been employed to rectify the phase of the laser.Using the control system,the random excursion of the laser phase can be reduced or even be eliminated.So the phases between the different laser units are locked,and the better coherence of the laser arrays can be got.The statistic characteristic of the laser is analyzed by using the random process theory. The temporal coherent of several laser system has been discussed,and the results show that this technology is reasonable.
【CateGory Index】: TN248
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