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Registered TRANSCEIVER AND METHOD FOR HIGH-SPEED AUTO-COMPENSATING QUANTUM CRYPTOGRAPHY
- Inventors
- Youn Chun Ju, Noh Tae-Gon, Kim Heon Oh, Jongcheol Hong, Taehyoung Zyung
- Application No.
- 12096609 (2006.12.06)
- Publication No.
- 20080260393 (2008.10.23)
- Registration No.
- 8116636 (2012.02.14)
- Country
- UNITED STATES
- Project Code
- 05ZF1200, Core Researches in the Fields of Informations and Telecommunications, Taehyoung Zyung
- Abstract
- Provided are an auto-compensating quantum cryptography transceiver and method of transmitting a quantum cryptography key at a high speed. A quantum cryptography transmitter includes a wavelength converter, an optical attenuator, an optical phase modulator, and a Faraday mirror. A quantum cryptography receiver includes a polarization beam splitter, an optical coupler, an optical filter, and a photon detector. Thus, a limit of a transmission rate caused by Rayleigh scattering of an optical fiber can be overcome.