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A Practical Quantum Cryptography Transmitter
| International Journal of Computer Applications |
| Foundation of Computer Science (FCS), NY, USA |
| Volume 87 - Number 5 |
| Year of Publication: 2014 |
| Authors: Fouad Ali Yaseen |
10.5120/15205-3607
|
Fouad Ali Yaseen . A Practical Quantum Cryptography Transmitter. International Journal of Computer Applications. 87, 5 ( February 2014), 25-28. DOI=10.5120/15205-3607
Abstract
The extend success of any communication system essentially depends on the strength of the secrecy of transporting the information between the partners. The classical cryptography for the wired and wireless communication systems can not withstand against the challenges of new technologies. So, it is necessary to invent a new method to encrypt the information. The solution is quantum cryptography in communication system. The absolute security can be achieve with quantum cryptography protocol via building an effective hardware for satisfying the single-photon source must requirement by controlling the value of mean photon number. This was approximately achieved in this work by building a driving circuit that provide very short pulses, less than 10 ns for Laser Diode with output maximum power of 0. 99 mW and wavelength 650 nm. These short pulses enable getting faint laser pulses that were further attenuated to reach mean photon number equal to 0. 08 or less.
References
- C. H. Bennett and G. Brassard, "Quantum Cryptography: Public Key Distribution and Coin Tossing", International Conference on Computers, Systems and Signal Processing, Bangalore, 175, 1984.
- C. Wang, "A Solid-State Single Photon Source Based on Color Centers in Diamond" Dissertation at the Department of Physics at the Ludwig-Maximilians-Universit¨atM¨unchen, M¨unchen, June 08, 2007
- QuyˆenDinhXuˆan, RomainAll´eaume, LiantuanXiao,a, Fran¸coisTreussart, Bernard Journet, and Jean-Fran¸coisRoch, "Intensity noise measurement of strongly attenuated laser diode pulses in the time domain". J. Appl. Phys. (35), 117, 2006.
- S. Chiangga, P. Zarda, T. Jennewein, H. Weinfurter, "Towards practical quantum cryptography" Appl. Phys. B 69, 389–393 1999.
- Bernd Fr¨ohlich, James F Dynes, and et al. "A quantum access network" , arXiv:1309. 6431v1 [quant-ph], 25 Sep 2013.
- Boris Korzh, Nino Walenta, and et al, "A high-speed multi-protocol quantum key distribution transmitter based on a dual-drive modulator", Optical Society of America, 2013.
- B. E. A. Saleh and M. C. Teich, "Fundamentals of Photonics" , John Wiley and Sons, Inc. 1991.
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