Title :
Schemes of generating M-ASK signals and remote local oscillator at millimeter-wave band in Radio over Fiber system
Author :
Chen, Haoshuo ; Lin, Rujian ; Ye, Jiajun
Author_Institution :
The Key Lab of Specialty Fiber Optics and Optical Access Network, Shanghai University, XingJian Building, 149 Yanchang Road, China, 200072
Abstract :
This paper introduces two schemes to generate millimeter-wave (mm-wave) BPSK and M-ASK signals in Base Station in Radio over Fiber (RoF) system based on cascaded Dual-Drive Mach-Zehnder modulators (DD-MZM). A BPSK-modulated mm-wave RoF system is proposed by controlling the amplitudes of baseband digital signal. Another scheme to generate M-ASK-modulated mm-wave in BS is based on commanding the power of Intermediated Frequency (IF) signal. Both schemes can make the remote local reference signal available in the BS, which makes the system cos-tefficient. The proposed schemes are verified by theoretical derivation and simulation.
Keywords :
Baseband; Frequency; High speed optical techniques; Intensity modulation; Local oscillators; Millimeter wave communication; Optical modulation; Optical noise; Optical signal processing; Signal generators; BPSK; M-ASK; Radio over fiber (RoF); local millimeter-wave (mm-wave) oscillator; optical frequency multiplication (OFM);
Conference_Titel :
Communications and Photonics Conference and Exhibition (ACP), 2009 Asia
Conference_Location :
Shanghai, China
Print_ISBN :
978-1-55752-877-3
Electronic_ISBN :
978-1-55752-877-3
