Title :
Optical 16QAM modulation based on DD-MZM in radio-over-fiber system
Author :
Song Yingxiong ; Chen Xiang ; Li Yingchun
Author_Institution :
Key Lab. of Specialty Fiber Opt. & Opt. Access Networks, Shanghai Univ., Shanghai, China
Abstract :
This paper introduces a new scheme to produce millimeter-wave (mm-wave) 16QAM in Base Station (BS) in Radio over Fiber (RoF) system based on Dual-Drive Mach-Zehnder modulators (DD-MZM). The millimeter-wave is generated by OFM (Optical Frequency Multiplication), furthermore the modulation on optical-wave is transferred onto millimeter-wave. Through this scheme the remote local reference signal can be obtained in the Base Station (BS), which lowers the cost of the system. The proposed scheme is proved feasible by theoretical derivation and simulation.
Keywords :
Mach-Zehnder interferometers; optical modulation; quadrature amplitude modulation; radio-over-fibre; DD-MZM; base station; dual-drive Mach-Zehnder modulators; millimeter-wave 16QAM; optical 16QAM modulation; optical frequency multiplication; radio-over-fiber system; remote local reference signal; RoF; dual-electrode Mach-Zehnder modulator; harmonic generation; millimeter-wave;
Conference_Titel :
Wireless Mobile and Computing (CCWMC 2011), IET International Communication Conference on
Conference_Location :
Shanghai
DOI :
10.1049/cp.2011.0912
