论文信息 - All-optical decrementing of a packet’s time-to-live (TTL) field using logic XOR gates

All-optical decrementing of a packet’s time-to-live (TTL) field using logic XOR gates

A novel optical time-to-live (TTL) method based on the use of logic XOR gates is proposed. All-optical decrementing of a packetpsilas TTL field is shown employing a cascade of two SOA-based Mach-Zehnder interferometers. The principle of operation is validated by means of simulations, showing a good extinction ratio (higher than 10 dB) at the output of the 1-bit subtractor.

[1] J. Herrera,et al. All Optical N-Bit XOR Gate with Feedback for Optical Packet Header Processing , 2002, 2002 28TH European Conference on Optical Communication.

[2] Javier Martí,et al. All-optical correlation employing single logic XOR gate with feedback , 2006 .

[3] Randy Clinton Giles. Optical monitoring for transparent and all-optical networks , 2004, SPIE/OSA/IEEE Asia Communications and Photonics.

[4] F. Tong,et al. A routing loop control scheme in optical layer for optical packet networks , 2002, Optical Fiber Communication Conference and Exhibit.

[5] A. E. Willner,et al. All-optical decrementing of a packet's time-to-live (TTL) field and subsequent dropping of a zero-TTL packet , 2003 .