A cost-effective 100-Gb/s transmitter with low-speed optoelectronic devices and high spectral efficiency  

作　　者：高俊明 昌庆江 王涛 苏翼凯 

机构地区：[1]State Key Lab of Advanced Optical Communication Systems and Networks,Department of Electronic Engineering,Shanghai Jiao Tong University

出　　处：《Chinese Optics Letters》2008年第8期550-552,共3页中国光学快报（英文版）

基　　金：the"863"Program of China under Grant No.2006AA01Z255.

摘　　要：A 100-Gb/s high-speed optical transmitter is proposed and experimentally demonstrated. Based on frequency-quadrupling technique, two sub-channels with a fixed 50-GHz spacing are obtained from one laser source. Using return-to-zero differential quadrature phase-shift keying （RZ-DQPSK） modulation format and polarization multiplexing （PolMux）, only low-speed electronic devices of 12.5 GHz are needed for the 100-Gb/s transmitter. This eliminates the need of ultrahigh-speed optoelectronic devices and thus greatly reduces the cost. The experimental results show that this transmitter can achieve good performance in dispersion tolerance of a 25-km single mode fiber （SMF）.A 100-Gb/s high-speed optical transmitter is proposed and experimentally demonstrated. Based on frequency-quadrupling technique, two sub-channels with a fixed 50-GHz spacing are obtained from one laser source. Using return-to-zero differential quadrature phase-shift keying （RZ-DQPSK） modulation format and polarization multiplexing （PolMux）, only low-speed electronic devices of 12.5 GHz are needed for the 100-Gb/s transmitter. This eliminates the need of ultrahigh-speed optoelectronic devices and thus greatly reduces the cost. The experimental results show that this transmitter can achieve good performance in dispersion tolerance of a 25-km single mode fiber （SMF）.

关 键 词：Cost effectiveness Electrooptical devices MODULATION Optical systems Optoelectronic devices Quadrature phase shift keying Single mode fibers Spectrum analyzers 

分 类 号：TN29[电子电信—物理电子学]