AN OPTICALLY PREAMPLIFIED DIGITAL PPM RECEIVER WITH IMPROVED SUBOPTIMUM FILTERING

Authors
PHILLIPS AJ CRYAN RA SENIOR JM
Citation
Aj. Phillips et al., AN OPTICALLY PREAMPLIFIED DIGITAL PPM RECEIVER WITH IMPROVED SUBOPTIMUM FILTERING, Microwave and optical technology letters, 14(1), 1997, pp. 23-28
Citations number
16
Categorie Soggetti
Optics,"Engineering, Eletrical & Electronic
Journal title
Microwave and optical technology letters → ACNP
ISSN journal
08952477
Volume
14
Issue
1
Year of publication
1997
Pages
23 - 28
Database
ISI
SICI code
0895-2477(1997)14:1<23:AOPDPR>2.0.ZU;2-S
Abstract
Original analysis and results are given for an optically preamplified digital pulse-position-modulation (PPM) receiver with an improved elec trical-domain filtering regime consisting of a matched filter cascaded with a pulse-shaping network. Impressive sensitivity results are repo rted, with the 21.54 photons/bit predicted at 622 Mbit/s, surpassing b oth an equivalent optically preamplified on-off keyed nonreturn-to-zer o (OOK NRZ) system (by 8.1 dB) and the fundamental limit of such a pre amplified OOK NRZ receiver. (C) 1997 John Wiley & Sons, Inc.