All-Optical Envelope Detection and Fiber Transmission of Wireless Signals by External Injection of a DFB Laser

Author

Prince, Kamau ; Monroy, I. Tafur

Author_Institution

DTU Fotonik, Tech. Univ. of Denmark, Lyngby

Volume

20

Issue

15

fYear

2008

Firstpage

1317

Lastpage

1319

Abstract

We outline a novel method for all-optical envelope detection of wireless signals by exploiting cross-gain modulation effects in a distributed feedback laser operating with optical injection. We successfully demonstrate envelope detection of a 20-GHz carrier amplitude-shift-keying modulated signal at 2.5 Gb/s and its transmission over a 70-km optical fiber link. We present results including bit-error-rate measurements, signal waveforms, and receiver sensitivity penalties associated with envelope detection and fiber transmission.

Keywords

amplitude shift keying; distributed feedback lasers; error statistics; microwave photonics; optical communication equipment; optical fibre networks; optical links; optical modulation; radio-over-fibre; all-optical envelope detection; bit rate 2.5 Gbit/s; bit-error-rate; carrier amplitude-shift-keying modulated signal; cross-gain modulation; distance 70 km; distributed feedback laser; fiber transmission; frequency 20 GHz; optical fiber link; receiver sensitivity penalties; signal waveforms; wireless signals; Distributed feedback devices; Envelope detectors; Fiber lasers; Laser feedback; Optical feedback; Optical fibers; Optical modulation; Optical receivers; Optical sensors; Signal detection; All-optical signal processing; envelope detection; optical access network; radio-frequency-over-fiber (RFoF);

fLanguage

English

Journal_Title

Photonics Technology Letters, IEEE

Publisher

ieee

ISSN

1041-1135

Type

jour

DOI

10.1109/LPT.2008.926915

Filename

4563486