Title :
CSO distortions due to the combined effects of self- and external-phase modulations in long-distance 1550-nm AM-CATV systems
Author :
Wu, M.C. ; Wang, C.H. ; Way, W.I.
Author_Institution :
Dept. of Commun. Eng., Nat. Chiao Tung Univ., Hsinchu, Taiwan
fDate :
6/1/1999 12:00:00 AM
Abstract :
We found that the combined effects of self- and external-phase modulations must be considered in order to precisely predict the composite second-order distortions in a long-distance 1550-nm externally modulated AM-cable TV (CATV) system, especially when the applied phase modulation index and modulating tone frequency to the integrated phase modulator are high. This result has important implications to the optimum design of 1550-nm transmitter for long-distance AM and QAM-CATV systems.
Keywords :
amplitude modulation; cable television; optical fibre subscriber loops; optical modulation; quadrature amplitude modulation; self-phase modulation; 1550 nm; 1550-nm transmitter; CSO distortions; QAM-CATV systems; applied phase modulation index; composite second-order distortions; external-phase modulation; externally modulated AM-cable TV system; integrated phase modulator; long-distance 1550-nm AM-CATV systems; modulating tone frequency; optimum design; self-phase modulation; Brillouin scattering; Erbium-doped fiber amplifier; Intensity modulation; Nonlinear distortion; Optical distortion; Optical interferometry; Optical modulation; Optical transmitters; Phase modulation; Scanning probe microscopy;
Journal_Title :
Photonics Technology Letters, IEEE
