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	Signal shaping based on phase pre-modulation in fiber transmission systems
	Chen Xin ; Wu Ke-ying ; Ma Xiao-hong ; Zhang Han-yi ; Zhou Bing-kun
	2010-05-06 ; 2010-05-06
关键词	Practical/ optical fibre communication optical fibre dispersion optical modulation optical transmitters phase modulation/ signal shaping bit synchronous phase pre-modulation fiber transmission systems sensitivity reduction chromatic dispersion nonreturn-to-zero signals optical transmitter link dispersion optical signal-to-noise ratio dispersion management optical communication group velocity dispersion 10 Gbit/s/ A4280S Optical communication devices A4281D Optical propagation, dispersion and attenuation in fibres B6260C Optical communication equipment B4125 Fibre optics/ bit rate 1.0E+10 bit/s
中文摘要	Phase pre-modulation is investigated to overcome the impacts of sensitivity reduction and chromatic dispersion in high-speed and long-distance fiber transmission systems. The bit synchronous phase pre-modulation imposed on non-return-to-zero (NRZ) signals at the transmitter can reshape the NRZ pulse to return-to-zero (RZ) waveform and hence improve the eye opening. Experiments are performed to measure the spectra, eye diagrams and power penalties of conventional NRZ signals and phase-pre-modulated NRZ signals under different modulation depth and dispersion. Results of 10 Gb/s transmission show that the phase-pre-modulated NRZ signals have a power penalty lower than 1 dB with the absolute value of link dispersion less than 1000 ps/nm, exhibiting higher sensitivity and lower dispersion-induced penalty than conventional NRZ signals. This modulation scheme relaxes the requirements to optical signal-to-noise ratio and dispersion management, extends the transmission distance and is easy to implement.
语种	中文 ; 中文
出版者	Science Press ; China
内容类型	期刊论文
源URL	[http://hdl.handle.net/123456789/11457]
专题	清华大学
推荐引用方式 GB/T 7714	Chen Xin,Wu Ke-ying,Ma Xiao-hong,et al. Signal shaping based on phase pre-modulation in fiber transmission systems[J],2010, 2010.
APA	Chen Xin,Wu Ke-ying,Ma Xiao-hong,Zhang Han-yi,&Zhou Bing-kun.(2010).Signal shaping based on phase pre-modulation in fiber transmission systems..
MLA	Chen Xin,et al."Signal shaping based on phase pre-modulation in fiber transmission systems".(2010).

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