Abstract

A 40-Gb/s duobinary carrier-suppressed return-to-zero (DCS-RZ) signal format generated from phase-modulated (PM) duobinary signals by using a phase modulator and an external intensity modulator is proposed. The transmission performance of the proposed DCS-RZ format is theoretically investigated. The proposed DCS-RZ format can produce a signal bandwidth similar to that produced by the conventional DCS-RZ format generated from conventional duobinary signals using low-pass filters. However, the receiver sensitivities of the proposed DCS-RZ format can be improved by about 2 dB more than those of the conventional DCS-RZ format due to high extinction ratio and nonlinear tolerance. Due to a short pulse of the proposed DCS-RZ format, the tolerance of the first-order polarization mode dispersion (PMD) for the format can be improved by about 1 dB up to the differential-group-delay (DGD) value of 16 ps.

© 2006 IEEE

Experimental performance comparison of Duobinary and PSBT modulation formats for long-haul 40 Gb/s transmission on G 0.652 fibre

Erwan Pincemin, Christophe Gosset, Nassima Boudrioua, Antoine Tan, Didier Grot, and Thierry Guillossou
Opt. Express 20(27) 28171-28190 (2012)

40  Gbit/s Pulsed RZ-BPSK Transmission With a 40  GHz Self-Pulsated Distributed Feedback Laser Diode Mach–Zehnder Intensity Modulator Link

Yu-Chieh Chi, Huai-Yung Wang, Chih-Hsien Cheng, and Gong-Ru Lin
J. Opt. Commun. Netw. 6(7) 610-618 (2014)

Measurement of PMD tolerance in 40-Gb/s polarization-multiplexed RZ-DQPSK

Pierpaolo Boffi, Maddalena Ferrario, Lucia Marazzi, Paolo Martelli, Paola Parolari, Aldo Righetti, Rocco Siano, and Mario Martinelli
Opt. Express 16(17) 13398-13404 (2008)

28 Gb/s duobinary signal transmission over 40 km based on 10 GHz DML and PIN for 100 Gb/s PON

Zhengxuan Li, Lilin Yi, Xiaodong Wang, and Weisheng Hu
Opt. Express 23(16) 20249-20256 (2015)

Spectral filtering from a cross-phase modulated signal for RZ to NRZ format and wavelength conversion

S. H. Lee, K. K. Chow, and C. Shu
Opt. Express 13(5) 1710-1715 (2005)