Share Email Print

Proceedings Paper

Intelligent optical networking with photonic cross connections
Author(s): L. Ceuppens; Olivier Louis Jerphagnon; Jonathan Lang; Ayan Banerjee; Daniel J. Blumenthal
Format Member Price Non-Member Price
PDF $17.00 $21.00

Paper Abstract

Optical amplification and dense wavelength division multiplexing (DWDM) have fundamentally changed optical transport networks. Now that these technologies are widely adopted, the bottleneck has moved from the outside line plant to nodal central offices, where electrical switching equipment has not kept pace. While OEO technology was (and still is) necessary for grooming and traffic aggregation, the transport network has dramatically changed, requiring a dramatic rethinking of how networks need to be designed and operated. While todays transport networks carry remarkable amounts of bandwidth, their optical layer is fundamentally static and provides for only simple point-to-point transport. Efficiently managing the growing number of wavelengths can only be achieved through a new breed of networking element. Photonic switching systems (PSS) can efficiently execute these functions because they are bit rate, wavelength, and protocol transparent. With their all-optical switch cores and interfaces, PSS can switch optical signals at various levels of granularity wavelength, sub band, and composite DWDM fiber levels. Though cross-connect systems with electrical switch cores are available, they perform these functions at very high capital costs and operational inefficiencies. This paper examines enabling technologies for deployment of intelligent optical transport networks (OTN), and takes a practical perspective on survivability architecture migration and implementation issues.

Paper Details

Date Published: 9 September 2002
PDF: 14 pages
Proc. SPIE 4910, Optical Networking II, (9 September 2002); doi: 10.1117/12.482420
Show Author Affiliations
L. Ceuppens, Calient Networks (United States)
Olivier Louis Jerphagnon, Calient Networks (United States)
Jonathan Lang, Calient Networks (United States)
Ayan Banerjee, Calient Networks (United States)
Daniel J. Blumenthal, Calient Networks (United States)

Published in SPIE Proceedings Vol. 4910:
Optical Networking II
Shizhong Xie; Chunming Qiao; Yun Chur Chung, Editor(s)

© SPIE. Terms of Use
Back to Top