Title :
Low operating current 40 mW PM fiber coupled DFB laser modules for externally modulated 1550 nm WDM sources
Author :
Funabashi, M. ; Hiraiwa, K. ; Koizumi, S. ; Yamanaka, N. ; Kasukawa, A.
Author_Institution :
Yokohama R&D Labs., Furukawa Electr. Co. Ltd., Yokohama, Japan
Abstract :
Polarization maintaining (PM) fiber coupled DFB laser modules with a very high slope efficiency were demonstrated for 1550 nm WDM sources, obtaining a low operating current of 149 mA for CW 40 mW output power. Cavity length and coupling coefficient of the DFB laser were optimized to realize low operating current as well as high wavelength stability.
Keywords :
III-V semiconductors; distributed feedback lasers; gallium arsenide; indium compounds; laser cavity resonators; laser stability; optical fibre couplers; optical transmitters; quantum well lasers; wavelength division multiplexing; 149 mA; 1550 nm; 40 mW; CW output power; InGaAsP; cavity length; compensated InGaAsP MQW-SCH; coupling coefficient; externally modulated 1550 nm WDM sources; high wavelength stability; low operating current; polarization maintaining fiber coupled DFB laser modules; very high slope efficiency; Fiber lasers; Optical coupling; Optical fiber devices; Optical fiber polarization; Optical fibers; Optical films; Optical modulation; Packaging; Power lasers; Wavelength division multiplexing;
Conference_Titel :
Optical Communication, 2001. ECOC '01. 27th European Conference on
Print_ISBN :
0-7803-6705-7
DOI :
10.1109/ECOC.2001.988847
