A Colorless, Directionless and Contention-less ROADM that Utilizes Interconnected WSSs

Authors

Li Zhao, Optical State Key Laboratory of Advanced Optical Communication Systems and Networks, Department of Electronic Engineering, Shanghai Jiao Tong University, Shanghai 200240, ChinaFollow
Weiqiang Sun, Optical State Key Laboratory of Advanced Optical Communication Systems and Networks, Department of Electronic Engineering, Shanghai Jiao Tong University, Shanghai 200240, ChinaFollow
Weisheng Hu, Optical State Key Laboratory of Advanced Optical Communication Systems and Networks, Department of Electronic Engineering, Shanghai Jiao Tong University, Shanghai 200240, ChinaFollow

Author Country (or Countries)

China

Abstract

We propose a novel colorless, directionless and contention-less (CDC) reconfigurable optical add/drop multiplexer (ROADM) that is composed of interconnected wavelength selective switches (WSSs). The key components of this ROADM are interconnected WSSs. Using the connecting branches from WSS to WSS, the channels at any wavelengths from any input may exploit any transponder in the photonic ROADM node. Both of simulation and analytical results showed that when the number of connecting branches (r) equals 2, same blocking performance may be achieved as CDC case (where r equals to N-1). Meanwhile, it achieves significant capital expense saving when compared with other equivalent CDC-ROADMs while assuring 5000 microsecond latency with the First Fit selection algorithm.

Recommended Citation

Zhao, Li; Sun, Weiqiang; and Hu, Weisheng (2015) "A Colorless, Directionless and Contention-less ROADM that Utilizes Interconnected WSSs," Applied Mathematics & Information Sciences: Vol. 09: Iss. 6, Article 60.
Available at: https://digitalcommons.aaru.edu.jo/amis/vol09/iss6/60