Title :
Erbium-doped fiber compound-ring laser with a ring filter
Author :
Zhang, Jianluo ; Lit, John W.Y.
Author_Institution :
Dept. of Phys., Waterloo Univ., Ont., Canada
fDate :
5/1/1994 12:00:00 AM
Abstract :
A new all-fiber, diode-pumped laser with a compound-ring structure has been demonstrated. A double-coupler fiber ring filter formed by two in-line low-loss couplers is used as an intracavity mode selection element. It functions as a filter which provides a larger free spectral range for the compound laser cavity and serves as a ready port for the laser output. The fiber laser is pumped at 980 nm with a threshold of 7.9 mW and a slope efficiency of 0.11. The condition for a maximum output power can be obtained by tuning an in-line polarization controller.<>
Keywords :
erbium; fibre lasers; laser cavity resonators; laser tuning; optical couplers; optical fibres; optical filters; optical losses; optical pumping; ring lasers; 7.9 mW; 980 nm; Er-doped fibre ring laser; all-fiber; compound laser cavity; compound-ring structure; diode-pumped laser; double-coupler fiber ring filter; erbium-doped fiber compound-ring laser; free spectral range; in-line low-loss couplers; in-line polarization controller; intracavity mode selection element; laser output; maximum output power; optical fibre filter; ring filter; slope efficiency; tuning; Diodes; Erbium-doped fiber lasers; Filters; Laser excitation; Laser modes; Laser tuning; Optical fiber couplers; Optical fiber polarization; Pump lasers; Ring lasers;
Journal_Title :
Photonics Technology Letters, IEEE
