Performance degradations of 2.4 Gbit/s NRZ/RZ lightwave systems due to reflection-induced phase-to-intensity-noise conversion

Author

Elrefaie, A. ; Tu, S. ; Romeiser, M.

Author_Institution

Bellcore, Red Bank, NJ, USA

Volume

1

Issue

7

fYear

1989

fDate

7/1/1989 12:00:00 AM

Firstpage

173

Lastpage

175

Abstract

Performance degradations in 2.4-Gb/s NRZ (nonreturn to zero) and RZ lightwave systems due to phase-to-intensity-noise conversion between two connectors have been evaluated using computer simulation techniques. Both NRZ and RZ systems have approximately the same penalty if the roundtrip time delay between the two connectors is an exact integer number of bits. If the roundtrip time delay is slightly offset, however, the RZ system penalty is significantly reduced. For example, the RZ system penalty is reduced from 3 dB (roundtrip delay between the two connectors=40 b) to 1.5 dB (roundtrip delay=40.5 b) for two connectors with 8-dB return loss each.<>

Keywords

digital communication systems; digital simulation; light reflection; noise; optical links; optical losses; 2.4 Gbit/s; 8 dB; NRZ/RZ lightwave systems; computer simulation techniques; connectors; nonreturn to zero; penalty; performance degradations; reflection-induced phase-to-intensity-noise conversion; return loss; return to zero; roundtrip time delay; Bit error rate; Connectors; Degradation; Delay; Equations; Laser modes; Laser noise; Optical filters; Optical reflection; Optical signal processing;

fLanguage

English

Journal_Title

Photonics Technology Letters, IEEE

Publisher

ieee

ISSN

1041-1135

Type

jour

DOI

10.1109/68.36029

Filename

36029