Title :
A Frequency-Doubling Optoelectronic Oscillator Based on a Dual-Parallel Mach–Zehnder Modulator and a Chirped Fiber Bragg Grating
Author :
Wang, Lixian ; Zhu, Ninghua ; Li, Wei ; Liu, Jianguo
Author_Institution :
State Key Lab. on Integrated Optoelectron., Chinese Acad. of Sci., Beijing, China
Abstract :
A frequency-doubling optoelectronic oscillator (FD-OEO) based on a dual-parallel Mach-Zehnder modulator (DPMZM) and a chirped fiber Bragg grating (CFBG) has been demonstrated. The DPMZM implements a carrier phase-shifted double sideband (CPS-DSB) modulation to generate a microwave signal at the second-harmonic frequency, while the CFBG ensures the oscillation of the fundamental frequency signal by tailoring the phase relationships between the optical sidebands and the carrier. As a result, self-starting 10- and 20-GHz microwave signals with low phase noises are simultaneously generated.
Keywords :
Bragg gratings; chirp modulation; microwave photonics; optical fibres; optical harmonic generation; optical modulation; carrier phase shifted double sideband modulation; chirped fiber Bragg grating; dual parallel Mach-Zehnder modulator; frequency 10 GHz to 20 GHz; frequency doubling optoelectronic oscillator; microwave signal; second harmonic frequency; Bragg gratings; Frequency modulation; Optical fibers; Optical filters; Optical modulation; Optical polarization; Chirped fiber Bragg grating; dual-parallel Mach–Zehnder modulator; frequency-doubling optoelectronic oscillator;
Journal_Title :
Photonics Technology Letters, IEEE
DOI :
10.1109/LPT.2011.2167141
