Title :
Clipping induced distortion in lightwave CATV transmission systems: numerical simulation and experiments
Author_Institution :
AT&T-Network Systems Nederland BV, Huizen, Netherlands
Abstract :
Clipping induced distortion is a fundamental limit for subcarrier multiplexed lightwave video transmission systems. The distortion limits imposed by clipping effects in both directly and externally modulated systems are investigated by simulations and experiments. It appears that in externally modulated systems the composite triple beat (CTB) components are 6 dB higher than in directly modulated systems. The composite second order (CSO) components however, are virtually absent. From the simulations, theoretical limits for the system performance are derived for the German BK600 frequency plan (50 channels) and the USA 80 channels NTSC allocation scheme
Keywords :
cable television; frequency allocation; numerical analysis; optical fibre networks; optical modulation; optical noise; optical transmitters; semiconductor lasers; subcarrier multiplexing; visual communication; German BK600 frequency plan; USA 80 channels NTSC allocation; clipping effects; clipping induced distortion; composite second order components; composite triple beat components; directly modulated systems; distortion limits; experiments; externally modulated systems; laser diode transmitter; lightwave CATV transmission systems; lightwave video transmission systems; numerical simulation; subcarrier multiplexing; system performance; theoretical limits; Diode lasers; Distortion measurement; Integrated circuit modeling; Nonlinear distortion; Numerical simulation; Optical distortion; Optical modulation; Optical transmitters; Predictive models; Radio spectrum management;
Conference_Titel :
Communications, 1995. ICC '95 Seattle, 'Gateway to Globalization', 1995 IEEE International Conference on
Conference_Location :
Seattle, WA
Print_ISBN :
0-7803-2486-2
DOI :
10.1109/ICC.1995.525237
