Title :
A novel photonic frequency down-shifting technique for millimeter-wave-band radio-over-fiber systems
Author :
Zhou, Gang ; Zhang, Xiupu ; Yao, Jianping ; Wu, Ke ; Kashyap, Raman
Author_Institution :
Dept. of Electr. & Comput. Eng., Concordia Univ., Montreal, Que., Canada
Abstract :
A novel photonic frequency down-shifting technique for millimeter-wave-band radio-over-fiber (RoF) systems is proposed and verified by simulation. The frequency shifting is based on subcarrier modulation (SCM). An optical carrier with a subcarrier is injected into the frequency shifter consisting of a Mach-Zehnder modulator (MZM) or electroabsorption modulator (EAM) driven by a radio frequency sinusoidal signal. The frequency-shifted optical carrier with a frequency-shifted subcarrier is, thus, generated by SCM modulation.
Keywords :
electro-optical modulation; electroabsorption; microwave photonics; optical fibre networks; Mach-Zehnder modulator; electroabsorption modulator; frequency shifter; millimeter-wave-band radio-over-fiber systems; photonic frequency down-shifting; radio frequency sinusoidal signal; subcarrier modulation; Electrodes; Frequency modulation; Millimeter wave technology; Optical modulation; Optical signal processing; Phase modulation; RF signals; Radio frequency; Voltage; Wavelength division multiplexing; Microwave photonics; millimeter-wave (mm-wave); optical fiber communications; radio-over-fiber (RoF);
Journal_Title :
Photonics Technology Letters, IEEE
DOI :
10.1109/LPT.2005.851906
