Title :
Simultaneous wavelength-stabilization of 980-nm pump lasers
Author :
Giles, C.R. ; Erdogan, T. ; Mizrahi, V.
Author_Institution :
Crawford Hill Lab., AT&T Bell Labs., Holmdel, NJ, USA
Abstract :
High power 980-nm strained QW semiconductor lasers connected to the input ports of a 4/spl times/4-fused fiber star coupler are simultaneously wavelength-locked through reflection from a single narrow-band fiber grating connected to one output port. This configuration enables simple pump wavelength control, inhibits deleterious pump-laser interactions, and improves amplifier reliability through pump redundancy.<>
Keywords :
diffraction gratings; laser frequency stability; optical communication equipment; optical couplers; optical fibres; optical pumping; reflectivity; semiconductor lasers; 4/spl times/4-fused fiber star coupler; 980 nm; 980-nm pump lasers; amplifier reliability; input ports; pump redundancy; pump wavelength control; pump-laser interactions; reflection; simultaneous wavelength-stabilization; single narrow-band fiber grating; strained QW semiconductor lasers; wavelength-locked; Fiber gratings; Fiber lasers; Laser excitation; Narrowband; Optical coupling; Optical fiber couplers; Optical reflection; Power lasers; Pump lasers; Semiconductor lasers;
Journal_Title :
Photonics Technology Letters, IEEE
