Paper
7 May 2004 Plug and Play quantum key distribution system using differential phase shift
Author Affiliations +
Proceedings Volume 5281, Optical Transmission, Switching, and Subsystems; (2004) https://doi.org/10.1117/12.520250
Event: Asia-Pacific Optical and Wireless Communications, 2003, Wuhan, China
Abstract
This report proposes a “Plug and Play” quantum key distribution system using differential phase shift, in which any birefringence effects and polarization-dependent losses in the telecom fiber are automatically compensated by using a Faraday mirror. In this system, a light pulse is split into three pulses after traveling through four couplers and a light intensity feedback servosystem is plugged into this system in order to adjust the phase shifter to compensate the variation of these three pulses. The efficiency of key creation in this system is 8/3 higher than the conventional cryptosystem based on the BB84 protocol.
© (2004) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Xiuliang Chen, Chunyuan Zhou, Guang Wu, Xianghe Li, and Heping Zeng "Plug and Play quantum key distribution system using differential phase shift", Proc. SPIE 5281, Optical Transmission, Switching, and Subsystems, (7 May 2004); https://doi.org/10.1117/12.520250
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KEYWORDS
Quantum key distribution

Phase shifts

Mirrors

Servomechanisms

Interferometers

Birefringence

Modulators

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