An 80-W Laser Diode Array with 0.1 nm Linewidth for Rubidium Vapor Laser Pumping  

作　　者：YANG Zi-Ning WANG Hong-Yan LU Qi-Sheng HUA Wei-Hong XU Xiao-Jun 杨子宁;王红岩;陆启生;华卫红;许晓军(College of Optoelectronic Science and Engineering,National University of Defense Technology,Changsha 410073)

机构地区：[1]College of Optoelectronic Science and Engineering,National University of Defense Technology,Changsha 410073

出　　处：《Chinese Physics Letters》2011年第10期84-86,共3页中国物理快报（英文版）

摘　　要：The spectral linewidth of a 64-emitter laser-diode array is effectively suppressed by using a volume Bragg grating(VBG)based external cavity.At a maximal driven current of 90 A,the device produces a cw output of 80W with 1.2 W/A slope efficiency and 0.1 nm spectral linewidth(FWHM)centered at 780 nm.The power extraction efficiency reaches 90%as compared with the free running case.The central wavelength of the narrowed spectrum is tuned over a 0.3 nm range by adjusting the VBG's temperature.The absorption of 45%laser radiation by a 5-mm-long rubidium vapor cell with 150 Torr ethane and 450 Torr helium at 383 K is demonstrated.

关 键 词：EMITTER NARROW WIDTH 

分 类 号：TN2[电子电信—物理电子学]