Optimum Wavelength Filter Spectrum Response in DWDM Systems for Ultimate Spectral Efficiency(Fiber-Optic Transmission for Communications)
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概要
- 論文の詳細を見る
A method of evaluating the wavelength filter spectrum response is introduced. The increase of the crosstalk level due to the filtering and the relation between the total crosstalk and the spectral efficiency are derived in detail using the Gaussian filter. Since this method can be applied to various kinds of filter spectrum responses, the ultimate spectral efficiencies of filters are compared. In this comparison, the problem of the box-like filter, which has been considered to be desirable, is revealed, and this is improved by cascading the filter spectrum. The requirement on the rejection floor that inheres in the filter is also made clear.
- 社団法人電子情報通信学会の論文
- 2005-09-01
著者
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Kokubun Yasuo
Yokohama National Univ. Yokohama Jpn
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SUZUKI Shuichi
Yokohama National University, Faculty of Engineering, Department of Electrical and Computer Engineer
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Kokubun Yasuo
Yokohama National University
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Suzuki Shuichi
Yokohama National University Faculty Of Engineering Department Of Electrical And Computer Engineerin
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