Title :
Trends of optical networking technologies
Author :
Suzuki, Masatoshi ; Otani, Tomohiro ; Hayashi, Michiaki
Author_Institution :
KDD Kamifukuoka R&D Labs., Saitama, Japan
fDate :
29 June-3 July 2003
Abstract :
Optical layer networking, such as wavelength routing, switching and restoration/protection in an optical layer is a major trend of future optical networks to achieve highly scaleable and survivable optical backbone networks. In this paper, optical layer networking using MEMS-based optical switches both for ring and mesh networks is discussed. Fast protection time of about 20 ms for IP layer has been achieved by the optical layer protection with the optical network protection equipment using a 2D-MEMS in a 500 km bidirectional wavelength path switching ring network. The obtained switching time was comparable to that of optical cross connect using electrical switching fabrics. Regarding the intelligent optical network using the generalized multi-protocol label switching (GMPLS) protocols, interworking between a photonic cross connect based on a 3D-MEMS and an IP/MPLS router has been confirmed. Fast wavelength path provisioning as well as proper path restoration has been also achieved with the GMPLS testbed including three photonic cross connect nodes and 1000 km bidirectional transmission line. Finally, the feasibility of the transparent all-optical network has been demonstrated with the GMPLS testbed.
Keywords :
intelligent networks; micromechanical devices; multiprotocol label switching; optical fibre networks; optical switches; routing protocols; wavelength division multiplexing; 2D-MEMS; 3D-MEMS; GMPLS protocols; GMPLS testbed; IP layer; IP/MPLS router; MEMS-based optical switches; bidirectional transmission line; bidirectional wavelength path switching; generalized multi-protocol label switching; intelligent optical network; mesh networks; path restoration; photonic cross connect; ring networks; survivable optical backbone networks; transparent all-optical network; wavelength path provisioning; wavelength routing; Fabrics; Intelligent networks; Mesh networks; Optical fiber networks; Optical switches; Protection; Protocols; Spine; Testing; Wavelength routing;
Conference_Titel :
Transparent Optical Networks, 2003. Proceedings of 2003 5th International Conference on
Print_ISBN :
0-7803-7816-4
DOI :
10.1109/ICTON.2003.1264570