Title :
Dual-Loop Dual-Modulation Optoelectronic Oscillators With Highly Suppressed Spurious Tones
Author :
Kim, Jae-Young ; Jo, Jun-Hyung ; Choi, Woo-Young ; Sung, Hyuk-Kee
Author_Institution :
Dept. of Electr. & Electron. Eng., Yonsei Univ., Seoul, South Korea
fDate :
4/15/2012 12:00:00 AM
Abstract :
We successfully demonstrate an optoelectronic oscillator (OEO) low radio-frequency(RF)-threshold gain and a low level of spurious tones using semiconductor lasers under optical injection in dual fiber-loop configuration. Our 15-GHz OEO exhibits spurious tones suppressed over 70 dB by dual-loop modulation, maintaining a low RF-threshold gain of 27 dB and phase noise of 104 dBc/Hz at 10-kHz frequency offset.
Keywords :
injection locked oscillators; microwave photonics; phase noise; semiconductor lasers; dual fiber-loop configuration; dual-loop dual-modulation optoelectronic oscillators; frequency 15 GHz; gain 27 dB; phase noise; radiofrequency threshold gain; semiconductor lasers; spurious tones; Optical amplifiers; Optical attenuators; Optical fibers; Optical filters; Optical modulation; Stimulated emission; Dual-loop modulation; optical injection locking; optoelectronic oscillator (OEO);
Journal_Title :
Photonics Technology Letters, IEEE
DOI :
10.1109/LPT.2012.2187278
