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성과물

특허 검색
구분 출원국
출원년도 ~ 키워드

상세정보

등록 광필터를 사용한 클럭 추출방법 및 장치

광필터를 사용한 클럭 추출방법 및 장치
이미지 확대
발명자
이재명, 고제수
출원번호
10444192 (2003.05.23)
공개번호
20040067063 (2004.04.08)
등록번호
7162162 (2007.01.09)
출원국
미국
협약과제
초록
A method and apparatus for optical clock recovery using optical filters with fixed reflective wavelengths is provided. In the apparatus, a first filter receives an optical signal and extracts one out of two spectral lines corresponding to two side peaks that are second in magnitude to a peak and exist at both sides of a peak on the spectrum of the received optical signal. A second filter extracts a spectral line corresponding the largest peak on the spectrum of the received optical signal. An attenuator equalizes the power levels of the two spectral lines extracted by the first and second filters. A beating generation unit receives signals corresponding to the two equalized spectral lines and generates beating between the equalized spectral lines, thereby recovering a clock component.