Powerful Narrow Linewidth Random Fiber Laser  

作　　者：Jun YE Jiangming XU Hanwei ZHANG Pu ZHOU 

机构地区：[1]College of Optoelectronic Science and Engineering, National University of Defense Technology, Changsha, 410073,China [2]Hunan Provincial Collaborative Innovation Center of High Power Fiber Laser, Changsha, 410073, China

出　　处：《Photonic Sensors》2017年第1期82-87,共6页光子传感器（英文版）

摘　　要：In this paper, we demonstrate a narrow linewidth random fiber laser, which employs a tunable pump laser to select the operating wavelength for efficiency optimization, a narrow-band fiber Bragg grating （FBG） and a section of single mode fiber to construct a half-open cavity, and a circulator to separate pump light input and random lasing output. Spectral linewidth down to 42.31 GHz is achieved through filtering by the FBG. When 8.97 W pump light centered at the optimized wavelength 1036.5nm is launched into the half-open cavity, 1081.4 nm random lasing with the maximum output power of 2.15 W is achieved, which is more powerful than the previous reported results.In this paper, we demonstrate a narrow linewidth random fiber laser, which employs a tunable pump laser to select the operating wavelength for efficiency optimization, a narrow-band fiber Bragg grating （FBG） and a section of single mode fiber to construct a half-open cavity, and a circulator to separate pump light input and random lasing output. Spectral linewidth down to 42.31 GHz is achieved through filtering by the FBG. When 8.97 W pump light centered at the optimized wavelength 1036.5nm is launched into the half-open cavity, 1081.4 nm random lasing with the maximum output power of 2.15 W is achieved, which is more powerful than the previous reported results.

关 键 词：Random fiber laser distributed feedback Rayleigh scattering Raman scattering 

分 类 号：TN248[电子电信—物理电子学] TN248.4