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Journal of Lightwave Technology

Journal of Lightwave Technology

| A JOINT IEEE/OSA PUBLICATION

  • Vol. 28, Iss. 4 — Feb. 15, 2010
  • pp: 616–623

40-Gb/s Optical Packet Buffer Using Conversion/Dispersion-Based Delays

Omer Faruk Yilmaz, Scott R. Nuccio, Xiaoxia Wu, and Alan E. Willner

Journal of Lightwave Technology, Vol. 28, Issue 4, pp. 616-623 (2010)


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Abstract

We experimentally demonstrate a continuously tunable, all-optical packet buffer based on conversion dispersion delays. 40-Gb/s asynchronous transfer mode (ATM) packets with return-to-zero on–off keying data are buffered up to ten-packet length (116 ns). The packet buffer performance is characterized for several delay values. Power penalties of 3, 2, and 0.5 dB for zero-packet, five-packet, and ten-packet delays are achieved, respectively, at a bit error rate (BER) of $10^{- 9}$. Reconfiguration of the packet buffer is also investigated and reconfiguration times as fast as 25 ps are shown by using a high-speed optical switch to toggle between wavelength conversion pumps. The reconfiguration is also demonstrated for a 1 ns guard time between the packets. It is observed that reconfiguration with this method results in ${\sim} {\hbox {1.1}}$ and ${\sim} {\hbox {2}}$ dB extra power penalty at $10^{- 9}$ BER for 1 and 25 ps guard times, respectively.

© 2010 IEEE

Citation
Omer Faruk Yilmaz, Scott R. Nuccio, Xiaoxia Wu, and Alan E. Willner, "40-Gb/s Optical Packet Buffer Using Conversion/Dispersion-Based Delays," J. Lightwave Technol. 28, 616-623 (2010)
http://www.opticsinfobase.org/jlt/abstract.cfm?URI=jlt-28-4-616

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