Static vs. Dynamic Regenerator Directionality Assignment in OCX Switches: Network Simulation and Performance

Published

October 1, 2005

Author(s)

Kotikalapudi Sriram, David W. Griffith, G Di lorenzo, Oliver Borchert, Nada T. Golmie

Abstract

We have implemented a quantum key distribution (QKD) system with polarization encoding at 850 nm over 1 km of optical fiber. The high-speed management of the bit-stream, generation of random numbers and processing of the sifting algorithm are all handled by a pair of custom data handling circuit boards. As a complete system using a clock rate of 1.25 Gbit/s, it produces sifted keys at a rate of 1.1 Mb/s with an error rate lower than 1.3% while operating at a transmission rate of 312.5 Mbit/s and a mean photon number 5 = 0.1. With a number of proposed improvements this system has a potential for a higher key rate without an elevated error rate.

Proceedings Title

Broadband Networks 2005 Broadband Optical Networking symposium

Conference Location

, USA

Pub Type

Conferences

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Citation

Sriram, K. , Griffith, D. , Di lorenzo, G. , Borchert, O. and Golmie, N. (2005), Static vs. Dynamic Regenerator Directionality Assignment in OCX Switches: Network Simulation and Performance, Broadband Networks 2005 Broadband Optical Networking symposium, , USA, [online], https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=150133 (Accessed October 24, 2025)