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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.
- KSP Keywords
- High Speed, Optical attenuators, Optical fiber, Optical filters, Optical phase, Photon detector, Polarization beam splitter(PBS), Quantum cryptography, Rayleigh scattering, Transmission Rate, an optical fiber, beam splitter, optical coupler, optical phase modulator, phase modulator, wavelength converter