Digital two-level PAM and analogue PWM hybrid optical fiber transmission systems for TV and data applications

Author

Zhang, Jian-Guo ; Maewnin, M.

Author_Institution

Telecommun. Program, Asian Inst. of Technol., Bangkok, Thailand

Volume

42

Issue

3

fYear

1996

fDate

8/1/1996 12:00:00 AM

Firstpage

362

Lastpage

370

Abstract

We propose a novel optical fiber transmission system for supporting both digital and analogue communications in a very cost-effective fashion. The proposed system simultaneously uses a 2-level pulse amplitude modulation (PAM) for data communications and an analogue pulse width modulation (PWM) for TV applications. The principle of the 2-level PAM and analogue PWM hybrid scheme is presented, and its some distinguishing features are explained. Moreover, this proposed technique requires the same transmission bandwidth as a conventional analogue PWM scheme. Consequently, two different types of communication services can be transmitted over a common optical fiber channel by using the 2-level PAM and analogue PWM technique, without the use of wavelength- or frequency- or time-division multiplexing

Keywords

cable television; data communication; digital communication; optical fibre networks; optical modulation; pulse amplitude modulation; pulse width modulation; 2-level pulse amplitude modulation; TV applications; analogue PWM system; analogue communications; analogue pulse width modulation; communication services; data applications; data communications; digital communications; digital two-level PAM system; hybrid optical fiber transmission systems; optical fiber channel; transmission bandwidth; Amplitude modulation; Fiber nonlinear optics; Nonlinear optics; Optical distortion; Optical fibers; Optical modulation; Optical receivers; Optical transmitters; Pulse width modulation; TV;

fLanguage

English

Journal_Title

Consumer Electronics, IEEE Transactions on

Publisher

ieee

ISSN

0098-3063

Type

jour

DOI

10.1109/30.536132

Filename

536132