Efficient Orthogonal Modulation Enabled by Injection Locked Limiting Amplifiers

Author

Fragkos, Alexandros ; Bogris, Adonis ; Syvridis, Dimitris

Author_Institution

Dept. of Inf. & Telecommun., Nat. & Kapodistrian Univ. of Athens, Athens, Greece

Volume

25

Issue

7

fYear

2013

fDate

1-Apr-13

Firstpage

667

Lastpage

670

Abstract

We propose and experimentally demonstrate a novel receiver architecture based on injection locking for demodulating a DPSK/ASK orthogonally modulated signal. The receiver exploits the limiting amplification of an injection locked laser to discriminate the two data streams, enhance the performance of DPSK, and increase the ASK extinction ratio up to 8 dB, making this modulation format suitable for the cost-efficient capacity upgrade of metro networks.

Keywords

amplitude shift keying; differential phase shift keying; optical fibre amplifiers; optical modulation; optical receivers; ASK; DPSK; amplitude shift keying; differential phase shift keying; extinction ratio; injection locked laser; injection locked limiting amplifiers; injection locking; metro networks; orthogonal modulation; receiver architecture; Amplitude shift keying; Differential phase shift keying; Erbium-doped fiber amplifier; Optical attenuators; Receivers; Semiconductor lasers; Communication system performance; injection locked amplifiers; lasers and optical signal processing; semiconductor lasers and optical signal processing;

fLanguage

English

Journal_Title

Photonics Technology Letters, IEEE

Publisher

ieee

ISSN

1041-1135

Type

jour

DOI

10.1109/LPT.2013.2246834

Filename

6461056