Title :
160-Channel FM-video transmission using optical FM/FDM and subcarrier multiplexing and an erbium doped optical fibre amplifier
Author :
Way, W.I. ; Yi-Yan, A. ; Andrejco, M.J. ; Choy, M.M. ; Saifi, M. ; Lin, Chong
Author_Institution :
Bellcore, Red Bank, NJ, USA
Abstract :
A total of 16 DFB lasers with 10 GHz frequency spacing were combined to transport 160-channel FM television signals to 16 locations; each link distance was 9 km with an average power margin of 7.5 dB. The 16 optical carriers were simultaneously modulated by a composite of 10 FM-video signals. A high-finesse optical Fabry-Perot etalon with a half-intensity width of about 1.5 GHz and a free spectral range of 4 nm was used, both as an optical channel filter and as a frequency discriminator. An erbium doped fibre amplifier was used to provide a net gain of 9.2 dB.
Keywords :
frequency division multiplexing; frequency modulation; optical communication equipment; optical fibres; optical links; optical modulation; video signals; 9 km; DFB lasers; FM-video transmission; average power margin; free spectral range; frequency discriminator; frequency spacing; half-intensity width; link distance; net gain; optical FM/FDM; optical Fabry-Perot etalon; optical channel filter; subcarrier multiplexing; television signals;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19900095
