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Proceedings Paper

Flexible and simple link design for long-haul transmission taking real span-length variations into account
Author(s): Dirk Breuer; Norbert Hanik
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Paper Abstract

The pressure on prices per bit and distance in operator networks requires an ongoing reduction of costs. In todays optical transport networks typical transparent transmission lengths are in the order of about 400 to 600 km. Then costly electrical 3R-regeneration is required. One way to deal with this cost-driver is to introduce ultra long haul (ULH) transparent WDM systems which are able to cover transmission length of e.g. up to 2000 km and thus decreasing the number of regenerative transponders. However, to maintain the flexibility of the network to add and drop traffic at required locations the use of optical add drop multiplexers (OADMs) or optical cross connects (OXCs) is mandatory in these systems, particularly for pan-European but even for European national networks. The design of such ULH-networks has to deal with a vast number of issues, in particular the physical layer design has to be very flexible and to allow for different optimization and adjustment schemes. In this paper based on computer simulations we will compare different approaches to reduce the design complexity of 10 Gbit/s ULH systems taking into account environmental constraints like availability of housing stations for different target distances.

Paper Details

Date Published: 7 May 2004
PDF: 11 pages
Proc. SPIE 5281, Optical Transmission, Switching, and Subsystems, (7 May 2004); doi: 10.1117/12.520532
Show Author Affiliations
Dirk Breuer, T-Systems Nova GmbH (Germany)
Norbert Hanik, T-Systems Nova GmbH (Germany)


Published in SPIE Proceedings Vol. 5281:
Optical Transmission, Switching, and Subsystems
Cedric F. Lam; Chongcheng Fan; Norbert Hanik; Kimio Oguchi, Editor(s)

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