A Compact Optoelectronic Oscillator Based on an Electroabsorption Modulated Laser

Author

Pei Zhou ; Shilong Pan ; Dan Zhu ; Ronghui Guo ; Fangzheng Zhang ; Yongjiu Zhao

Author_Institution

Key Lab. of Radar Imaging & Microwave Photonics, Nanjing Univ. of Aeronaut. & Astronaut., Nanjing, China

Volume

26

Issue

1

fYear

2014

fDate

Jan.1, 2014

Firstpage

86

Lastpage

88

Abstract

A novel method to miniaturize the optoelectronic oscillator (OEO) is proposed and demonstrated by replacing the laser source, intensity modulator, and photodetector with an electroabsorption modulated laser (EML), because the electroabsorption modulator (EAM) in the EML can perform simultaneously photodetection and intensity modulation. A 9.945-GHz microwave signal with a phase noise of -101.31 dBc/Hz at 10 kHz offset is experimentally generated. The dependence of the phase noise on the EAM bias voltage is investigated. The EML-based OEO features low cost, simple structure, and potentially high operational frequency, which can find applications in future communications, radars, navigation, and satellite systems.

Keywords

electro-optical modulation; electroabsorption; laser noise; microwave photonics; phase noise; photodetectors; EAM; EML; OEO; electroabsorption modulated laser; electroabsorption modulator; frequency 9.945 GHz; intensity modulator; optoelectronic oscillator; phase noise; photodetector; Masers; Microwave oscillators; Optical fibers; Optical reflection; Optical resonators; Phase noise; Electroabsorption modulated laser; microwave generation; microwave photonics; optoelectronic oscillator (OEO);

fLanguage

English

Journal_Title

Photonics Technology Letters, IEEE

Publisher

ieee

ISSN

1041-1135

Type

jour

DOI

10.1109/LPT.2013.2289937

Filename

6658863