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, ?On the passive probing of fiber optic quantum communication channels?, Journal of Experimental and Theoretical Physics, 110(4), 561-567 (2010).
Abstract:
Avalanche photodetectors based on InGaAs:P are the most sensitive and only detectors operating in the telecommunication wavelength range 1.30?1.55 ?m in the fiber optic quantum cryptography systems that can operate in the single photon count mode. In contrast to the widely used silicon photodetectors for wavelengths up to 1 ?m operating in a waiting mode, these detectors always operate in a gated mode. The production of an electron-hole pair in the process of the absorption of a photon and the subsequent appearance of an avalanche of carriers can be accompanied by the inverse processes of the recombination and emission of photons. Such a backward emission can present a potential serious problem for the stability of fiber optic quantum cryptography systems against passive probing. The results of analyzing the detection of backscattered radiation are reported. The probability of such an emission has been estimated.
BibTeX Citation:
@article{-PPFOQCC-10,
author = {},
title = {On the passive probing of fiber optic quantum communication channels},
journal = {Journal of Experimental and Theoretical Physics},
volume = {110},
number = {4},
pages = {561-567},
year = {2010},
doi = {10.1134/S1063776110040023},
url = {http://www.springerlink.com/content/lw73q14584010k58/},
}
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BibTeX Citation:
