Abstract
Colorless, directionless, and contentionless (CDC) are considered to be three important features for next-generation reconfigurable optical add/drop multiplexer (ROADM) nodes. However, CDC-ROADMs have not been widely deployed due to their relatively higher cost and complexity. In this paper, a compact and multiport wavelength cross connect (WXC) is proposed and demonstrated. Based on the developed WXC, we introduce two novel quasi-contentionless ROADM architectures, which provide considerable reduction of traffic blocking ratio when compared with colorless/directionless (CD)-ROADM architectures. Meanwhile, compared to conventional CDC-ROADMs, the proposed architectures show advantages on cost, intrafiber connection, and system complexity. Experiments are carried out to demonstrate the ability to add/drop two or more identical wavelengths simultaneously in a static network and the flex-grid wavelength routing characteristic of the proposed ROADM nodes. These results indicate that the proposed ROADM solution is a practical and promising trade-off for future elastic optical networks.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
