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Low cost optical add/drop module for WDM optical communication networks  

이상화 (서원대학교 컴퓨터정보통신공학부)
송해상 (서원대학교 컴퓨터정보통신공학부)
안대영 (서원대학교 컴퓨터교육과)
Publication Information
Journal of the Korea Institute of Information and Communication Engineering / v.7, no.8, 2003 , pp. 1816-1822 More about this Journal
Abstract
We propose a novel structure of wavelength selective optical add/drop filter comprising two tap couplers and a fiber Bragg grating. The device has unique features including a simpler structure and a lower cost implementation as compared with existing device for the same operation. The filter performance has been measured and analyzed, experimentally. The implemented prototype filter shows good performance with no­crosstalk power penalty in a 155Mbps per channel wavelength­division­multiplexing transmission system but suffers from a relatively high loss of 3.5㏈ and 21㏈ for transmitted and dropped channel, respectively. While the dropped channel extinction ratio was more than 15㏈, the transmitted channel extinction ratio was more than 26㏈.
Keywords
광통신;파장 분할 다중화;섬유 브라그 격자;광 분기 결합기;광 신호 삽입/추출 모듈;
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