Title :
Improved laser-fiber coupling by using spot-size transformer
Author :
Rahman, B.M.A. ; Rajarajan, M. ; Wongcharoen, T. ; Grattan, K.T.V.
Author_Institution :
Dept. of Electr. Electron. & Inf. Eng., City Univ., London, UK
fDate :
4/1/1996 12:00:00 AM
Abstract :
Improved coupling between a laser and a fiber is demonstrated using a synchronous directional coupler section with nonidentical waveguides to enlarge the spot-size for improved butt-coupling.
Keywords :
optical directional couplers; optical fibre couplers; semiconductor lasers; InGaAsP; InGaAsP laser; improved butt-coupling; improved laser-fiber coupling; nonidentical waveguides; spot-size transformer; synchronous directional coupler section; Directional couplers; Fiber lasers; Laser theory; Optical coupling; Optical fiber couplers; Optical fiber devices; Optical fibers; Optical frequency conversion; Optical waveguides; Waveguide lasers;
Journal_Title :
Photonics Technology Letters, IEEE
