Equalization-enhanced phase noise for 100 Gb/s transmission and beyond with coherent detection.
The probability density function and impact of equalizationenhanced phase noise (EEPN) is analytically investigated and simulated for 100 Gb/s coherent systems using electronic dispersion compensation. EEPN impairment induces both phase noise and amplitude noise with the former twice as much as the latter. The effects of transmitter phase noise on EEPN are negligible for links with residual dispersion in excess of 700 ps/nm. Optimal linear equalizer in the presence of EEPN is derived but show only marginal performance improvement, indicating that EEPN is difficult to mitigate using simple DSP techniques. In addition, the effects of EEPN on carrier recovery techniques and corresponding cycle slip probabilities are studied.
Lau
Alan Pak Tao
AP
Department of Electrical Engineering, The Hong Kong Polytechnic University, Photonics Research Center, Hung Hom, Kowloon, Hong Kong. eeaptlau@polyu.edu.hk
Shen
Thomas Shun Rong
TS
Shieh
William
W
Ho
Keang-Po
KP
D003198:Computer Simulation; D004581:Electronics / Q000295:instrumentation*; D004867:Equipment Design; D005336:Fiber Optic Technology; D012815:Signal Processing, Computer-Assisted / Q000295:instrumentation*; D041623:Tomography, Optical Coherence / Q000379:methods*