Title :
Increasing the delay-bit rate product on silicon chip using star-16QAM signal with high spectral efficiency
Author :
Zhang, Liang ; Wang, Tao ; Liu, Qi ; Hu, Xiaofeng ; Wang, Jing ; Qiu, Min ; Su, Yikai
Author_Institution :
State Key Lab of Advanced Optical Communication Systems and Networks, Department of Electronic Engineering, Shanghai Jiao Tong University, 800 Dongchuan Rd, 200240, China
Abstract :
We proposed and experimentally demonstrate the generation of a novel star-16QAM using a dual-parallel Mach-Zehnder modulator (DPMZM) followed by a phase modulator (PM). Coherent detection and off-line processing are used to recover constellation diagrams. We also study optical delay of a novel star-16QAM signal through a silicon microring resonator. Delay time of ∼ 30ps is observed by comparing the eye diagram of the star-16QAM signal on-resonance with that off-resonance.
Keywords :
Band pass filters; Delay; Optical buffering; Optical modulation; Optical packet switching; Optical receivers; Optical resonators; Signal generators; Silicon; Tunable circuits and devices; (060.2330) Fiber optics communications; (060.4250) Networks;
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
