Title :
Strong optical bistability in a simple L-band tunable erbium-doped fiber ring laser
Author :
Oh, Jung Mi ; Lee, Donghan
Author_Institution :
Dept. of Phys., Chungnam Nat. Univ., Daejeon, South Korea
fDate :
4/1/2004 12:00:00 AM
Abstract :
We demonstrate strong optical bistability in a widely tunable L-band erbium-doped fiber ring laser pumped by a 980-nm laser diode. The bistable region is as much as 150-mW wide and can be controlled by the lasing wavelength or the length of erbium-doped fiber. The mechanism for the bistability is not typical cross gain saturation in a two-mode operation, but rather saturable absorption strongly enhanced in the proposed scheme.
Keywords :
erbium; fibre lasers; laser modes; laser tuning; optical bistability; optical pumping; ring lasers; 150 mW; 980 nm; L-band tunable erbium-doped fiber ring laser; bistable region; cross gain saturation; laser diode; lasing wavelength; optical pumping; saturable absorption; strong optical bistability; two-mode operation; Absorption; Erbium-doped fiber lasers; Laser excitation; Laser modes; Optical bistability; Optical fiber couplers; Pump lasers; Ring lasers; Semiconductor lasers; Tunable circuits and devices;
Journal_Title :
Quantum Electronics, IEEE Journal of
DOI :
10.1109/JQE.2004.824699
