Improved Extinction Ratios for Both Cross and Bar States Using Two-Section Ultra Short Vertical Directional Couplers

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概要

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• We show that both cross and bar states with high extinction ratios larger than 30dB can be achieved in ultra short vertical directional couplers with two sections. Various combinations of the refractive indices in the two sections are studied using the improved coupled mode theory and the beam propagation method. Design guidelines to achieve high extinction ratios with large tolerances are presented.

• 社団法人応用物理学会の論文
• 2000-12-15

著者

• Kim B‐g

  School Of Electronic Engineering Soongsil University

• Cho Sung-chan

  Optical Packet Switch Team Etri

• Kim Boo-Gyoun

  School of Electronic Engineering, Soongsil University, Seoul 156-743, Korea

• Shakouri Ali

  Baskin School of Engineering, University of California, Santa Cruz, CA 95064, USA

• CHO Sung-Chan

  School of Electronic Engineering, SoongSil University

• Shakouri Ali

  Baskin School Of Engineering University Of California

• Kim Boo-Gyoun

  School of Electronic Engineering, Soongsil University

関連論文

• 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

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