40 Gbps Downstream Transmission Using DQPSK and 20 Gbps Upstream Transmission Using IRZ Modulation in Full-Duplex WDM-PON-Reference-Cited by-同舟云学术

40 Gbps Downstream Transmission Using DQPSK and 20 Gbps Upstream Transmission Using IRZ Modulation in Full-Duplex WDM-PON

Published:2017-08-24 Issue:3 Volume:40 Page:255-260
ISSN:2191-6322
Container-title:Journal of Optical Communications
language:en
Short-container-title:

Author:

Das Binoy¹²,Mukherjee Rahul²,Mandal Gour Chandra²,Patra Ardhendu Sekhar²

Affiliation:

1. J. K. College , Purulia , West Bengal , India

2. Department of Physics , Sidho-Kanho-Birsha University , Purulia , West Bengal , India

Abstract

Abstract A full duplex WDM-PON system is designed and demonstrated based on carrier reusing scheme and by employing differential quadrature phase shift keying (DQPSK) modulation in downlink and inverse return-to-zero modulation in the uplink to transmit 40 Gbps and 20Gbps data-rate respectively. Three Mach-Zehnder modulators are used sequentially to realize the 67 % carrier suppressed return to zero (CS-RZ) DQPSK modulation in the downlink transmission. Very low bit error rate values @10‒9 and clear eye-diagrams are observed over a 40 km single-mode-fiber transmission in our proposed full-duplex configuration.

Publisher

Walter de Gruyter GmbH

Subject

Electrical and Electronic Engineering,Condensed Matter Physics,Atomic and Molecular Physics, and Optics

Link

https://www.degruyter.com/document/doi/10.1515/joc-2017-0022/pdf

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