一种高性能环形可调谐光纤光栅激光器研究  

Study of a High-performance Ring Wavelength Tunable Fiber Bragg Grating Laser

作　　者：白冰[1] 郭玉彬[2] 王天枢[2] 

机构地区：[1]吉林大学电子科学与工程学院 [2]吉林大学通信工程学院光通信系,吉林长春130012

出　　处：《激光与红外》2005年第7期484-487,共4页Laser & Infrared

摘　　要：研制了一种新型的高性能环形可调谐光纤光栅激光器。该激光器使用980nmLD作为泵浦源,使用长度为10.8m的新型增益平坦掺铒光纤作为增益介质,采用可调谐光纤光栅滤波器进行波长调谐,调谐范围可达41nm(1528nm^1569nm),中心波长可精确调谐到C波段指定的ITU-T标准中心波长处,3dB带宽<0.08nm,25dB带宽<0.2nm,波长稳定性优于0.01nm,边模抑制比>60dB。最大输出功率46.94mW,功率稳定性优于±0.02dB,阈值泵浦功率7.3mW,斜率效率为39.75%。并分析了不同腔长、不同输出耦合比对输出功率的影响。A new-style high-performance ring wavelength-tunable fiber Bragg grating laser is studied, which used 980nm LD as pump source and 10.8m new-style gain flatting erbium-doped fiber as gain medium. Precisely locked to the ITU -T wavelength grid with the stability of 0.01nm using tunable fiber Bragg grating is demonstrated. The tuning range of 41nm（ 1528nm - 1569nm） , linewidth in 3 dB 〈0.08nm and in 25dB 〈0.2nm, and edge-mode suppression ratio 〉 60dB have been achieved. The maximum output power is 46.94 mW, and the stability of power is better than ＋0.02dB. The threshold and slope efficiency of laser are 7.3 mW and 39.75%. The output power of fiber ring laser influenced by difference split ratio of output couplers or different length of Er-doped fiber are discussed.

关 键 词：光纤光栅滤波器 环形掺铒光纤激光器 波长可调谐 

分 类 号：TN253[电子电信—物理电子学] TN248