Title :
A 160-gb/s group-alternating-phase CSRZ format
Author :
Su, Yikai ; Möller, Lothar ; Ryf, Roland ; Xie, Chongjin ; Liu, Xiang
Author_Institution :
Dept. of Electron. Eng., Shanghai Jiao Tong Univ., China
Abstract :
We demonstrate a novel 160-Gb/s modulation format that employs phase inversion of every four consecutive bits in a group. This format enables a very simplified clock recovery by optical filtering of 40-GHz spaced tones. The recovered clock shows a low timing jitter of 270 fs. In addition, we investigate its enhanced nonlinear transmission property by comparing it with carrier-suppressed return-to-zero (CSRZ) and pairwise-alternating-phase CSRZ signals through analytical studies and numerical simulations. We experimentally verify its good performance relative to CSRZ through a data transmission over a 38-km single-mode fiber.
Keywords :
optical fibre communication; optical filters; optical modulation; synchronisation; timing jitter; 160 Gbit/s; 270 fs; 38 km; carrier-suppressed return-to-zero; clock recovery; group-alternating-phase CSRZ format; optical filters; phase inversion; timing jitter; Clocks; Data communication; Fiber nonlinear optics; Filtering; Nonlinear optics; Numerical simulation; Optical filters; Optical modulation; Signal analysis; Timing jitter; Clock recovery; data communication; nonlinear optics; optical modulation; synchronization;
Journal_Title :
Photonics Technology Letters, IEEE
DOI :
10.1109/LPT.2005.856431
