Ultra Short Two-Section Vertical Directional Coupler Switches with High Extinction Ratios
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概要
- 論文の詳細を見る
We show that both cross and bar states with high extinction ratios larger than 30 dB can be achieved at the same end of ultra short fused vertical directional coupler switches (FVCSs) with two sections by changing the refractive indices of cores and inner cladding layer less than 1%. The improvement of extinction ratios for various combinations of the refractive indices in a two-section FVCS is studied using the improved coupled theory and beam propagation method. Design guidelines to achieve high extinction ratios with large tolerances are presented.
- Publication Office, Japanese Journal of Applied Physics, Faculty of Science, University of Tokyoの論文
- 2001-06-15
著者
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Kim B‐g
School Of Electronic Engineering Soongsil University
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Moon Y
School Of Electronic Engineering Soongsil University
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Cho Sung-chan
Optical Packet Switch Team Etri
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Kim Boo-Gyoun
School of Electronic Engineering, Soongsil University, Seoul 156-743, Korea
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Moon Yong
School of Electronic Engineering, Soongsil University, Seoul 156-743, Korea
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Shakouri Ali
Baskin School of Engineering, University of California, Santa Cruz, CA 95064, USA
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Shakouri Ali
Baskin School Of Engineering University Of California
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Kim Boo-Gyoun
School of Electronic Engineering, Soongsil University
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Moon Yong
School of Electronic Engineering, Soongsil University
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- Ultra Short Two-Section Vertical Directional Coupler Switches with High Extinction Ratios
- Improved Extinction Ratios for Both Cross and Bar States Using Two-Section Ultra Short Vertical Directional Couplers
- Improved Extinction Ratio in Ultra Short Directional Couplers Using Asymmetric Structures
- Effect of Coupling Coefficients on Self-Pulsation Characteristics in Multi-Section Distributed Feedback Lasers with Amplifying Optical Feedback