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16 October 2001 Penalty-free 10-Gb/s transmission through a cascade of all-optical cross-connects
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Proceedings Volume 4583, Metro and Access Networks; (2001)
Event: Asia-Pacific Optical and Wireless Communications Conference and Exhibit, 2001, Beijing, China
Optical cross connects (OXC) play a key role in the contemporary metro DWDM networks. It provides optical interconnection between multiple interoffice metro fiber rings in addition to the simple wavelength add/drop functions. It also provides re-configurable routings and efficient recovery capabilities for mesh architectures with multiple access nodes over a metropolitan area. Any traffic traveling through such a multi-node ring and mesh network could potentially pass through a cascade of several optical cross-connects and several fiber spans. The cascadability is an important function of OXC in optical networks. This paper experimentally demonstrates the cascadability of all optical cross connects (OXC) in high speed (10Gb/s), DWDM (32l) optical networking through 300km SMF-28 fiber without regeneration. The power penalty is less than 0.5dB compared to the system without OXCs but with same amount of attenuation as the OXCs. The results conclude that by carefully managing the power budget and dispersion compensation, the penalty free transmission through cascaded OXC system can be achieved.
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Yi Liang, Hongxing Dai, Jin-Yi Pan, Xinhong Wang, and De Yu Zang "Penalty-free 10-Gb/s transmission through a cascade of all-optical cross-connects", Proc. SPIE 4583, Metro and Access Networks, (16 October 2001);

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