ETRI-Knowledge Sharing Plaform

KOREAN
특허 검색
Status Country
Year ~ Keyword

Detail

Registered OPTICAL PHASE MODULATION METHOD AND APPARATUS FOR QUANTUM KEY DISTRIBUTION

양자 암호키 분배를 위한 광위상 변조 방법 및 장치
이미지 확대
Inventors
Cho Jeong-Sik, Noh Tae-Gon, Seok-Beom Cho, Kim Kwangjoon, Kang Sae-Kyoung
Application No.
12899128 (2010.10.06)
Publication No.
20110150226 (2011.06.23)
Registration No.
8477947 (2013.07.02)
Country
UNITED STATES
Project Code
09MB2400, Development of key technologies for commercial quantum cryptography communication system, Noh Tae-Gon
Abstract
Provided is an optical phase modulating method and apparatus for a quantum key distribution. When an optical phase modulator is arranged outside an optical interferometer, a configuration of the optical interferometer may be simplified, and an extension of an optical path caused by the optical phase modulator, instability and an insertion loss increased in the optical interferometer, and the like, may be overcome. An output feature may be improved by adjusting an applied voltage of the optical phase modulator arranged outside the optical interferometer.