Title :
Optically Tunable Frequency-Doubling Brillouin Optoelectronic Oscillator With Carrier Phase-Shifted Double Sideband Modulation
Author :
Yang, Bo ; Jin, Xiaofeng ; Chi, Hao ; Zhang, Xianmin ; Zheng, Shilie ; Zou, Shihuan ; Chen, Haoshuo ; Tangdiongga, Eduward ; Koonen, Ton
Author_Institution :
Dept. of Inf. Sci. & Electron. Eng., Zhejiang Univ., Hangzhou, China
fDate :
6/15/2012 12:00:00 AM
Abstract :
An optically tunable frequency-doubling optoelectronic oscillator (FD-OEO) based on stimulated Brillouin scattering (SBS) and carrier phase-shifted double sideband (CPS-DSB) modulation is proposed and demonstrated. SBS effect provides narrowband filtering for the OEO to generate an oscillation signal with frequency equal to the Brillouin frequency shift, while a CPS-DSB modulation by using a dual-parallel Mach-Zehnder modulator is implemented to double the oscillation frequency. Owing to the wavelength-dependent Brillouin frequency shift, frequency tunability is realized by tuning the wavelength of the laser source. In the experiments, frequency-doubling microwave signals from 18.38 to 18.74 GHz are generated when the wavelength of the laser source is tuned from 1565 to 1535 nm.
Keywords :
microwave generation; microwave photonics; modulation; optical harmonic generation; optical tuning; stimulated Brillouin scattering; Brillouin optoelectronic oscillator; carrier phase shifted double sideband modulation; frequency 18.38 GHz to 18.74 GHz; frequency doubling microwave signals; optically tunable frequency doubling; stimulated Brillouin scattering; wavelength-dependent Brillouin frequency shift; Amplitude modulation; Frequency modulation; Optical fibers; Optical pumping; Oscillators; Scattering; Frequency-doubling; microwave generation; optoelectronic oscillator; stimulated Brillouin scattering;
Journal_Title :
Photonics Technology Letters, IEEE
DOI :
10.1109/LPT.2012.2194483
