Fiber Optics and Optical Communication

Implementation of two-way free space quantum key distribution

[+] Author Affiliations
Mohd Fared bin Abdul Khir

Micro Systems and MEMS, Mimos Berhad, Technology Park Malaysia, 57000 Kuala Lumpur, Malaysia

Mohd Norzaliman Mohd Zain

Micro Systems and MEMS, Mimos Berhad, Technology Park Malaysia, 57000 Kuala Lumpur, Malaysia

Suryadi Soekardjo

International Islamic University Malaysia, Kulliyah of Science, Jalan Sultan Ahmad Shah, Kuantan, Pahang, 25200 Malaysia

Suhairi Saharudin

Micro Systems and MEMS, Mimos Berhad, Technology Park Malaysia, 57000 Kuala Lumpur, Malaysia

Sahbudin Shaari

Universiti Kebangsaan Malaysia, Institute of Micro Engineering and Nanoelectronics, Photonics Lab, Bangi, Selangor, 43600 Malaysia

Opt. Eng. 51(4), 045006 (Apr 09, 2012). doi:10.1117/1.OE.51.4.045006
History: Received July 29, 2011; Revised January 19, 2012; Accepted February 7, 2012
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Abstract.  We report an implementation of a two-way, four-state quantum key distribution (QKD) protocol (namely, the LM05 protocol) over a free space medium. A stable quantum bit error rate of 3.34% and maximum tolerable channel loss for secure key generation of 5.68 dB in the absence of a photon number splitting attack were recorded. The result strongly indicates the feasibility of a two-way QKD protocol implementation over a free space medium.

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© 2012 Society of Photo-Optical Instrumentation Engineers

Citation

Mohd Fared bin Abdul Khir ; Mohd Norzaliman Mohd Zain ; Suryadi Soekardjo ; Suhairi Saharudin and Sahbudin Shaari
"Implementation of two-way free space quantum key distribution", Opt. Eng. 51(4), 045006 (Apr 09, 2012). ; http://dx.doi.org/10.1117/1.OE.51.4.045006


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