Title :
Multichannel video transmission over 100 km of step index singlemode fibre using a directly modulated 1537 nm distributed feedback laser
Author :
Rosher, P.A. ; Fenning, S.C.
Author_Institution :
British Telecom Res. Labs., Ipswich, UK
fDate :
4/14/1990 12:00:00 AM
Abstract :
The operation of an analogue lightwave system through a dispersive fibre, using a directly modulated 1537 nm distributed feedback laser, is experimentally investigated. Dispersion is shown to result in carrier suppression and the generation of second order sum products. Using the appropriate control of the laser modulation depth, loss limited transmission of eight, broadcast quality, video channels was achieved over 100 km of step index singlemode fibre.
Keywords :
cable television; community antenna television; distributed feedback lasers; optical communication equipment; optical modulation; semiconductor junction lasers; 100 km; 1537 nm; DFB lasers; analogue lightwave system; analogue optical communications; broadcast quality; carrier suppression; directly modulated lasers; dispersion; dispersive fibre; distributed feedback laser; fibre CATV; generation of second order sum products; laser modulation depth; loss limited transmission; multichannel video transmission; operation; step index single-mode fibre; video channels;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19900347
