Title :
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
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);
Journal_Title :
Photonics Technology Letters, IEEE
DOI :
10.1109/LPT.2013.2289937
