977-nm all-fiber DFB laser

• Published in: IEEE photonics technology letters Vol. 16; no. 11; pp. 2442 - 2444
• Main Authors: Fu, L.B., Ibsen, M., Richardson, D.J., Payne, D.N.
• Format: Journal Article
• Language: English
• Published: New York IEEE 01.11.2004; The Institute of Electrical and Electronics Engineers, Inc. (IEEE)
• Subjects: Distributed feedback devices; Fiber gratings; Fiber lasers; Laser excitation; Laser feedback; Laser transitions; Optical coupling; Optical fibers; Power generation; Pump lasers

Three-level operation of a fiber distributed feedback (DFB) laser operating around 980 nm is demonstrated for the first time. The ytterbium-doped DFB laser shows a maximum slope efficiency of 61% and output power of 38.2 mW under a launched single-mode pump power of 150 mW at 910 nm. The efficiency...