Study on the Beam Quality of Uncoupled Laser Diode Arrays

作     者：GAO Chunqing WEI Guanghui (Optical Engineering Department, Beijing Institute of Technology, Beijing 100081, China) Received Oct. 13, 2000 Revised manuscript received Dec. 27, 2000 

出 版 物：《Chinese Journal of Lasers》 (中国激光(英文版))

年 卷 期：2001年第4期

页      面：1-5页

学科分类：080901[工学-物理电子学] 0809[工学-电子科学与技术（可授工学、理学学位）] 08[工学] 080401[工学-精密仪器及机械] 0804[工学-仪器科学与技术] 0803[工学-光学工程] 

基　　金：theFoundationforExcellentYoungTeachersbytheMinistryofEducationandtheFoundationofNationalKeyLaboratoryofHighPowerSemiconductorLaser 

主　　题：Laser diode array beam quality second order moments 

摘      要：The beam quality of uncoupled laser diode array is studied theoretically and experimentally. By calculating the second order moments of the beam emitted from the laser diode array, the dependence of the M 2 factor of the laser diode array on the M 2 factor of the single emitter, the ratio of the emitting region to the non emitting space, and the number of emitters, has been deduced. From the measurement of the beam propagation the M 2 factor of a laser diode bar is experimentally determined. The measured M 2 factor of the laser diode bar agrees with the theoretical prediction.