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

fYear

1996

fDate

25 Feb.-1 March 1996

Firstpage

282

Lastpage

283

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;

fLanguage

English

Publisher

ieee

Conference_Titel

Optical Fiber Communications, 1996. OFC '96

Print_ISBN

1-55752-422-X

Type

conf

DOI

10.1109/OFC.1996.908296

Filename

908296