In this paper, a distributed Bragg reflection (DBR) type Er^(3+)/Yb^(3+) co-doped fiber laser of high output power and high slope efficiency was developed. Its gain medium was a 4.45-m-long Er^(3+)/Yb^(3+) co-doped fiber. When it was pumped by a 1064-nm Nd:YAG, the linewidth of output laser was measured as 0.072 nm by 3 dB and 0.192 nm by 25 dB at 1552.08 nm. The maximum output power was measured as 69 mW. Its power stability was <;; 5%, side mode suppression ratio was 59 dB, and the output wavelength stability was ±0.01 nm. The laser had a threshold of 12 mW and a slope efficiency of 22%.
© 2005 Chinese Optics Letters
(060.2380) Fiber optics and optical communications : Fiber optics sources and detectors
(060.2390) Fiber optics and optical communications : Fiber optics, infrared
(060.2410) Fiber optics and optical communications : Fibers, erbium
Jun Li, Yubin Guo, Tianshu Wang, Yadong Sun, Bing Bai, Xiaobin Li, and Guijun Hu, "An all-fiber type Er^(3+)/Yb^(3+) co-doped fiber laser," Chin. Opt. Lett. 1, 503-505 (2003)