Optical Intersecting Waveguide Switches with Curved Electrodes
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概要
- 論文の詳細を見る
Reflection type optical switches with intersecting waveguides and curved electrodes are newly proposed. The guided incident mode is expanded into an infinite spectrum of plane wavelets. The effects of light tunneling into the transmission port is taken care of by treating the 3-layer structure and using its reflection and transmission coefficients in estimation of the extinction ratios. It is found that the electrode curved in the form of an exponential spiral provides remarkably improved power reflectivity. This is because it poses a constant angle of incidence (smaller than the critical angle) to all variously oriented impinging wavelets. In this way, all plane wavelets are made to undertake total reflections. These total reflections result in considerably high extinction ratios to be achievable at the transmission port. It is also shown that the electrode length is shorter and the intersection angle is wider than those corresponding to a straight electrode. Therefore, it is concluded that the curvature of the electrode improves the switching characteristics of the device.
- 社団法人電子情報通信学会の論文
- 1994-01-25
著者
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Nayyer J
金沢大 工
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Nayyer Jamshid
The Central Opto-electronics Research Laboratories, Sumitomo Cement Co. Ltd.,
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Hatami-Hanza Hamid
The Optical Communications Group, School of Electrical Engineering, The University of New South Wale
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Safavi-Naeini Safieddin
Institute of Electrical Engineering, Tehran University
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Hatami-hanza Hamid
The Optical Communications Group School Of Electrical Engineering The University Of New South Wales
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Safavi-naeini Safieddin
Institute Of Electrical Engineering Tehran University