Title :
Staggered differential phase-shift keying format with RZ or CSRZ clock for 100Gbit/s transmission
Author :
Shao, Yufeng ; Chi, Nan ; Li, Xinying ; Zhou, Shumin ; Hou, Chunning ; Liu, Xiao ; Zheng, Xi ; Huang, Bo ; Zhang, Junwen ; Fang, Wuliang
Author_Institution :
State Key Lab of ASIC & System, and Department of Communication Science and engineering, Fudan University, Shanghai 200433, China
Abstract :
Two novel optical phase modulation formats, the staggered differential phase-shift keying (SDPSK) with return-to-zero (RZ) and carrier-suppressed return-to-zero (CSRZ) shape, are proposed and compared by numerical simulation for 100 Gbit/s medium-range transmission. RZ-SDPSK and CSRZ-SDPSK signals are generated by cascading two phase modulators and a dual-arm Mach-Zehnder modulator. The demodulation of two phase formats can be achieved on 1 bit rate through only one Mach-Zehnder delay interferometer and a balanced receiver. The transmission performance of the extracted RZ and CSRZ clock signals are compared.
Keywords :
Clocks; Demodulation; Differential phase shift keying; Numerical simulation; Optical interferometry; Optical modulation; Optical receivers; Phase modulation; Shape; Signal generators; CSRZ; Phase modulation; RZ; SDPSK; clock;
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
