Athermal Narrow-Band Optical Filter at 1.55μm Wavelength by Silica-Based Athermal Waveguide(Special Issue on High-Capacity WDM/TDM Networks)
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概要
- 論文の詳細を見る
The temperature dependence of central wavelength of optical filters is a serious problem for the dense WDM systems. This dependence is owing to the temperature dependence of optical path-length of the waveguide. In this study, we realized a temperature independent silica-based optical filter at 1.55μm wavelength using an athermal waveguide, in which optical pathlength is independent of temperature. First, we designed a silica-based athermal waveguide, and next we designed and fabricated a ring resonator using the athermal waveguide. As a result, we successfully decreased the temperature dependence of central wavelength to less than 4 × 10^<-4> nm/K, which is 3% and 0.3% of corresponding values of conventional silica-based and semiconductor waveguide filters, respectively.
- 社団法人電子情報通信学会の論文
- 1998-08-25
著者
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Kokubun Yasuo
Department Of Electrical And Computer Engineering Graduate School Of Engineering Yokohama National U
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Yoneda Shigeru
Department Of Electrical And Computer Engineering Faculty Of Engineering Yokohama National Universit
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MATSUURA Shinnosuke
Department of Electrical and Computer Engineering, Faculty of Engineering, Yokohama National Univers
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Kokubun Yasuo
Department Of Electrical And Computer Engineering Faculty Of Engineering Yokohama National Universit
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Matsuura Shinnosuke
Department Of Electrical And Computer Engineering Faculty Of Engineering Yokohama National Universit
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