Title :
Wavelength switching of a fiber laser with a Sagnac loop reflector
Author :
Das, Gautam ; Lit, John W.Y.
Author_Institution :
Dept. of Phys., Acadia Univ., Wolfville, NS, Canada
Abstract :
A multiwavelength fiber laser is constructed with an elliptical core erbium-doped fiber serving as an anisotropic gain medium. A broadband fiber reflector and a Sagnac loop reflector form a Fabry-Perot resonant cavity. Three lasing wavelengths are obtained which are stable over an hour at room temperatures. With one of them as reference wavelength, we can switch the other two by a polarization controller. The lasing wavelengths are also tunable. The effects of the anisotropic gain behavior of the erbium-doped fiber are also explored.
Keywords :
erbium; fibre lasers; laser stability; laser tuning; optical fibre polarisation; optical switches; Fabry-Perot resonant cavity; Sagnac loop reflector; anisotropic gain behavior; anisotropic gain medium; broadband fiber reflector; elliptical core erbium-doped fiber; erbium-doped fiber; fiber laser; lasing wavelengths; multiwavelength fiber laser; polarization controller; reference wavelength; room temperatures; wavelength switching; Anisotropic magnetoresistance; Erbium-doped fiber lasers; Fabry-Perot; Fiber lasers; Optical fiber polarization; Resonance; Sagnac interferometers; Switches; Temperature; Tunable circuits and devices;
Journal_Title :
Photonics Technology Letters, IEEE
DOI :
10.1109/LPT.2003.818932
