Reducing the Level of Stray Exposure of an Optical Fiber in a Single-Pass Quantum Cryptography System

Reducing the Level of Stray Exposure of an Optical Fiber in a Single-Pass Quantum Cryptography System

A method for triggering a laser synchro-signal diode in a single-pass quantum cryptographic system is proposed. The method allows reducing the level of stray influence in an optical fiber from scattered laser radiation by 2 orders of magnitude and increasing the length of a single-fiber communicatio...

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Veröffentlicht in:Moscow University physics bulletin 2020-03, Vol.75 (2), p.175-180
Hauptverfasser: Balygin, K. A., Zaitsev, V. I., Klimov, A. I., Klimov, A. N., Kulik, S. P., Molotkov, S. N.
Format: Artikel
Sprache:eng
Schlagworte:
Mathematical and Computational Physics
Optical fibers
Physics
Physics and Astronomy
Quantum cryptography
Theoretical
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Zusammenfassung:A method for triggering a laser synchro-signal diode in a single-pass quantum cryptographic system is proposed. The method allows reducing the level of stray influence in an optical fiber from scattered laser radiation by 2 orders of magnitude and increasing the length of a single-fiber communication line when generating a secret key to 95 km.
ISSN:0027-1349
1934-8460
DOI:10.3103/S0027134920020034