Title :
Transmission over 560 km at 2.5 Gb/s using a directly modulated buried heterostructure gain-coupled DFB semiconductor laser
Author :
Nelson, L. ; Woods, I. ; White, J.K.
Author_Institution :
Nortel Networks Opt. Components, Paignton, UK
Abstract :
We have developed a buried heterostructure gain-coupled DFB laser capable of 2.5 Gb/s transmission up to 560 km of standard single mode fibre with a dispersion penalty less than 2 dB. Low dispersion penalty is also observed when using low frequency content SONET section overhead bytes and we believe this is made possible by the low thermal chirp characteristics of the device. The reach capability of this device also enables simplified and low cost manufacture because the use of a generic design for multiple reach requirements is made possible.
Keywords :
SONET; chirp modulation; distributed feedback lasers; electro-optical modulation; optical fibre dispersion; optical transmitters; semiconductor lasers; 2.5 Gbit/s; 560 km; Gb/s transmission; directly modulated buried heterostructure gain-coupled DFB semiconductor laser; dispersion penalty; generic design; low cost manufacture; low dispersion penalty; low frequency content SONET section; low thermal chirp characteristics; multiple reach requirements; overhead bytes; standard single mode fibre; Chirp; Costs; Fiber lasers; Frequency; Laser modes; Manufacturing; Optical fiber devices; SONET; Semiconductor lasers; Standards development;
Conference_Titel :
Optical Fiber Communication Conference and Exhibit, 2002. OFC 2002
Print_ISBN :
1-55752-701-6
DOI :
10.1109/OFC.2002.1036459
