100nm宽光谱可调谐掺饵光纤激光器

100nm Widely Tunable Er-doped Fiber Laser

采用1480nm大功率激光二极管双向抽运,新型铋基掺饵光纤做增益介质,基于旋转法布里珀罗腔的可调谐滤波器和带通滤波器做选频装置的宽光谱环形腔可调谐光纤激光器,可实现100nm(1523～1623nm)激光波长程控连续可调谐输出,激光输出功率大于1.58mW,3dB带宽小于0.1nm,波长重复性准确度小于0.01nm.

A widely tunable ring cavity fiber laser using 1480 nm high power LDs as forward and backward pumping is discussed. It also takes the Bi-based Er-doped fiber as the gain media,and uses the rotating F-P tunable filter and two band-pass filters as the wavelength tuning device . The laser can cover 100 nm（1523 -1623 nm） tuning range controlled by software. The output power is above 2 dBm. The 3 dB bandwidth is below 0.1 nm. The wavelength repetition precision is below 0.01 nm.