Title :
Tunable Erbium-Doped Fiber Laser Based on Random Distributed Feedback
Author :
Lulu Wang ; Xinyong Dong ; Shum, Perry Ping ; Haibin Su
Author_Institution :
Inst. of Optoelectron. Technol., China Jiliang Univ., Hangzhou, China
Abstract :
A tunable erbium-doped fiber (EDF) laser based on random distributed feedback through backward Rayleigh scattering in a 20-km-long single-mode fiber and a tunable fiber Fabry-Perot interferometer filter is demonstrated. It has a broad wavelength tuning range up to 40 nm (from 1525 to 1565 nm) with a narrow linewidth of ~0.04 nm. Due to the half-opened laser cavity design and the efficient gain from the pumped EDF, the measured threshold power is only 13 mW, and the pump efficiency is up to 14%.
Keywords :
Fabry-Perot interferometers; Rayleigh scattering; erbium; fibre lasers; interference filters; laser cavity resonators; laser feedback; laser tuning; optical pumping; backward Rayleigh scattering; broad wavelength tuning range; distance 20 km; gain; half-opened laser cavity design; narrow linewidth; pump efficiency; pumped EDF; random distributed feedback; single-mode fiber; threshold power; tunable erbium-doped fiber laser; tunable fiber Fabry-Perot interferometer filter; Distributed feedback devices; Erbium-doped fiber lasers; Laser excitation; Laser feedback; Optical fibers; Power lasers; Pump lasers; Erbium-doped fiber; Rayleigh scattering; random fiber laser; tunable laser;
Journal_Title :
Photonics Journal, IEEE
DOI :
10.1109/JPHOT.2014.2352623
