Design of All-Optical Contention Detection and Resolution for 40-Gb/s Label-Switched Routers |
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Authors: | Stampoulidis L Kehayas E Vyrsokinos K Apostolopoulos D Avramopoulos H |
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Affiliation: | Dept. of Electr. & Comput. Eng., Nat. Tech. Univ. of Athens; |
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Abstract: | We present a new scheme for all-optical contention detection and time-domain contention resolution of optical packets in label-switched routers that employ all-optical label recognition. The contention detection subsystem provides all the necessary control signals required to drive an optically controlled buffer which employs 1 times 2 optical switching elements and an optical fiber delay line. The state of the buffer is dynamically controlled on a per-packet basis with all the decisions and processing performed in the optical domain. Physical layer simulations show successful buffering and forwarding of 40-Gb/s optical packets with 2-dB power penalty |
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