Enhanced performance of an optically fed microwave communication system using a directly modulated laser transmitter with external injection

Author

Kaszubowska, A. ; Anandarajah, P. ; Barry, L.P.

Author_Institution

Sch. of Electron. Eng., Dublin City Univ., Ireland

Volume

1

fYear

2001

fDate

2001

Firstpage

314

Abstract

Summary form only given. One of the main technical challenges in optically fed microwave wireless networks is to generate the microwave optical data signals using semiconductor laser diodes. It has recently been shown that external injection into a laser diode may be used to enhance its modulation response. In this paper, we demonstrate that this enhancement of the modulation response allows us to greatly improve the performance of an optically fed microwave system based on direct modulation of laser diodes. A 14 dB improvement in system performance is obtained with a hybrid radio/fibre system used for distributing 155 Mbit/s data signals on an 18 GHz RF carrier

Keywords

microwave photonics; optical fibre communication; optical modulation; optical transmitters; radio networks; semiconductor lasers; 155 Mbit/s; 18 GHz; directly modulated laser transmitter; external injection; hybrid radio/fibre system; microwave optical data signal generation; modulation response enhancement; optically fed microwave communication system; optically fed microwave wireless networks; semiconductor laser diodes; Diode lasers; Microwave communication; Microwave generation; Optical fiber networks; Optical modulation; RF signals; Radio frequency; Signal generators; System performance; Wireless networks;

fLanguage

English

Publisher

ieee

Conference_Titel

Lasers and Electro-Optics Society, 2001. LEOS 2001. The 14th Annual Meeting of the IEEE

Conference_Location

San Diego, CA

ISSN

1092-8081

Print_ISBN

0-7803-7105-4

Type

conf

DOI

10.1109/LEOS.2001.969301

Filename

969301