Abstract

We present a new wavelength-routed photonic packet buffer that combines traveling delay lines with delay-line loops. The new packet buffer can effectively capitalize on the simplicity of traveling delay lines and the flexibility of delay-line loops. Three different packet buffering and scheduling techniques are investigated. The effectiveness of the new packet buffer is evaluated by computer simulation using a random traffic model. The simulation results show that the new packet buffer, in conjunction with the buffering and scheduling techniques, can efficiently make use of buffering spaces and, hence, substantially reduce the packet-loss probability by several orders of magnitude.

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  1. S. L. Danielsen, et al. "WDM packet switch architectures and analysis of the influence of tunable wavelength converters on performance", J. Lightwave Technol., vol. 15, pp. 219-227, Feb. 1997 .
  2. Z. Haas, "The `staggering' switch: An electronically controlled optical packet switch", J. Lightwave Technol., vol. 11, pp. 925-936, May 1993.
  3. D. K. Hunter, et al. "SLOB: A switch with large optical buffers for packet switching", J. Lightwave Technol., vol. 16, pp. 1725-1736, Feb. 1997.
  4. A. Misawa and M. Tsukada, "A prototype broadcast-and-select photonic ATM switch with a WDM output buffer", J. Lightwave Technol., vol. 15, pp. 2202-2211, Dec. 1998.
  5. T. Durhuus, et al. "All-optical wavelength conversion by semiconductor optical amplifiers", J. Lightwave Technol., vol. 14, pp. 942-954, June 1996.

J. Lightwave Technol. (5)

S. L. Danielsen, et al. "WDM packet switch architectures and analysis of the influence of tunable wavelength converters on performance", J. Lightwave Technol., vol. 15, pp. 219-227, Feb. 1997 .

Z. Haas, "The `staggering' switch: An electronically controlled optical packet switch", J. Lightwave Technol., vol. 11, pp. 925-936, May 1993.

D. K. Hunter, et al. "SLOB: A switch with large optical buffers for packet switching", J. Lightwave Technol., vol. 16, pp. 1725-1736, Feb. 1997.

A. Misawa and M. Tsukada, "A prototype broadcast-and-select photonic ATM switch with a WDM output buffer", J. Lightwave Technol., vol. 15, pp. 2202-2211, Dec. 1998.

T. Durhuus, et al. "All-optical wavelength conversion by semiconductor optical amplifiers", J. Lightwave Technol., vol. 14, pp. 942-954, June 1996.

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