Title :
Clipping limit in externally modulated lightwave CATV systems
Author :
Atlas, D.A. ; Pidgeon, R.E. ; Hess, D.W.
Author_Institution :
Transmission Syst. Eng., Sci.-Atlanta Inc., Norcross, GA, USA
fDate :
25 Feb.-1 March 1996
Abstract :
We have obtained analytic expressions for the composite triple beat distortion of several types of linearized externally modulated systems and compared them both to a directly modulated ideal laser and to a two-level limiter. We used the harmonic analysis method to analyze the cases of (1) a conventional Mach Zender interferometer (MZI), (2) an optically cancelled dual-stage cascaded MZI, and (3) an optically cancelled dual-stage parallel MZI.
Keywords :
Mach-Zehnder interferometers; cable television; electro-optical modulation; limiters; optical fibre subscriber loops; optical noise; analytic expressions; clipping limit; composite triple beat distortion; conventional Mach Zender interferometer; directly modulated ideal laser; externally modulated lightwave CATV systems; harmonic analysis method; linearized externally modulated systems; optically cancelled dual-stage cascaded MZI; optically cancelled dual-stage parallel MZI; two-level limiter; Chirp modulation; Fiber nonlinear optics; Laser noise; Nonlinear optics; Optical distortion; Optical fiber theory; Optical interferometry; Optical modulation; Optical refraction; Optical transmitters;
Conference_Titel :
Optical Fiber Communications, 1996. OFC '96
Print_ISBN :
1-55752-422-X
DOI :
10.1109/OFC.1996.908296
