Presentation 2014-01-22
General analysis on secure space-division multiplexed fiber system by Bell Labs
Osamu HIROTA, Kentaro KATO,
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Abstract(in English) Recently, the security of optical communications has been regarded as important matter for next generation network. In order to take measures, Bell Labs started a discussion of a security analysis of the space division multiplexed optical fiber system using multi core fiber. This is highly suggestive for the direction of the future development of this field. Thus, to introduce contents and to make steady progress is significance. They assume in a tapping process that the Signal to Noise ratio of an eavesdropper is smaller than that of a legitimate receiver, and they apply the well known wiretap channel theory. To generalize it, one needs to add an artificial randomness to relax a dependence of the ability of an eavesdropper, because the randomness of mode coupling depends on the ability of an eavesdropper. We consider how to improve it and propose a simple method. In addition, we show the security formula of Y-00 quantum stream cipher based on the same criterion with the theory of Bell Labs, which corresponds the ultimate secret capacity.
Keyword(in Japanese) (See Japanese page)
Keyword(in English) Multi-core optical fiber / Space division multiplexed system / Quantum Enigma cipher / Y-00 protocol
Paper # OCS2013-93
Date of Issue

Conference Information
Committee OCS
Conference Date 2014/1/16(1days)
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Registration To Optical Communication Systems (OCS)
Language JPN
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) General analysis on secure space-division multiplexed fiber system by Bell Labs
Sub Title (in English)
Keyword(1) Multi-core optical fiber
Keyword(2) Space division multiplexed system
Keyword(3) Quantum Enigma cipher
Keyword(4) Y-00 protocol
1st Author's Name Osamu HIROTA
1st Author's Affiliation Quantum ICT Research Institute of Tamagawa University()
2nd Author's Name Kentaro KATO
2nd Author's Affiliation Quantum ICT Research Institute of Tamagawa University
Date 2014-01-22
Paper # OCS2013-93
Volume (vol) vol.113
Number (no) 391
Page pp.pp.-
#Pages 6
Date of Issue