Fiber distribution for 80 compressed digital video channels using differential QPSK

Author

Joyce, G.R. ; Olshansky, R. ; Gross, R.

Author_Institution

GTE Lab. Inc., Waltham, MA, USA

Volume

3

fYear

1993

fDate

23-26 May 1993

Firstpage

1583

Abstract

Tests of the carrier-to-nonlinear-distortion (C/NLD) are performed on a Fabry-Perot (F-P) laser. For the C/NLD levels necessary for digital transmission on subcarriers, the distortion is dominated by clipping and matches that of expensive, highly linear distributed feedback (DFB) lasers. Using an F-P laser, the equivalent of 80 compressed MPEG digital video channels is transmitted on 20 subcarriers with 6 MHz channel spacing using differential quadrature-phase-shift-keyed (DQPSK) modulation and a simple delay-line demodulator

Keywords

data compression; demodulators; differential phase shift keying; digital television; laser variables measurement; optical delay lines; optical fibre communication; optical modulation; quadrature phase shift keying; Fabry-Perot laser; carrier-to-nonlinear-distortion; channel spacing; clipping; delay-line demodulator; differential QPSK; digital video channels; subcarriers; Channel spacing; Distributed feedback devices; Fabry-Perot; Fiber lasers; Laser feedback; Laser noise; Optical fiber testing; Performance evaluation; Transform coding; Video compression;

fLanguage

English

Publisher

ieee

Conference_Titel

Communications, 1993. ICC '93 Geneva. Technical Program, Conference Record, IEEE International Conference on

Conference_Location

Geneva

Print_ISBN

0-7803-0950-2

Type

conf

DOI

10.1109/ICC.1993.397550

Filename

397550