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3 September 2002 All-optical fabric for header reading and rewriting in optical label switching nodes
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Proceedings Volume 4907, Optical Switching and Optical Interconnection II; (2002)
Event: Asia-Pacific Optical and Wireless Communications 2002, 2002, Shanghai, China
Optical Label Switching (OLS) is one of the practical manners of optical packet switching. It is a main research domain in optical networks. The advantage of OLS is its bandwidth efficiency and ability to support various network devices. There are a lot of practical problems need to be resolved. Today, research into OLS technology has focused on key networking and hardware issues such as high-speed optical switch, optical storage component, and network nodes source distribution optimization algorithm. The optical Label Header contains header synchronizing bits, routing address bits, etc. Header reading and rewriting includes synchronizing, routing and checking technologies. So it is the key issue in the OLS, and has very important research and application values. In this paper, a novel proposed fabric scheme was discussed to achieve the function of the header reading and rewriting. It can be applied to the high-speed header reading and rewriting to satisfy the requirements of practical applications. The fabric scheme adopts a high-speed tunable laser and wavelength converter to rewrite the header. The high-speed tunable laser is based on Grated Coupler Sampled Reflector (GCSR) structure and the wavelength converter is based on Cross-Phase Modulation (XPM) in a Semiconductor Optical Amplifier (SOA) and a Mach-Zehnder Interferometer (MZI) structure. The synchronization of the packet in the node also be discussed.
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Jun Huang, Hua Liu, QingJi Zeng, Pengcheng Xiao, Jimin Liu, Hao Chi, and Huandong Zhao "All-optical fabric for header reading and rewriting in optical label switching nodes", Proc. SPIE 4907, Optical Switching and Optical Interconnection II, (3 September 2002);

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