All-Optical Switching Property of an MQW-Sandwich Nonlinear Directional Coupler with Nonlinear Losses
スポンサーリンク
概要
- 論文の詳細を見る
We analyze all-optical switching property of a nonlinear directional coupler (NLDC) having an MQW coupling layer with both nonlinear and linear losses, and examine the effect of nonlinear losses. We use the Galerkin finite element method accompanied by a predictor-corrector algorithm. The propagation loss along the strongly-coupled NLDC decreases with increasing nonlinear absorption coefficient due to saturation in absorption. A propagation loss of 8.18 dB or 2.38 dB in the bar state or the cross state is much smaller than the bulk loss of MQW structure which exceeds 50 dB. The nonlinear losses lengthen the coupling length and bring it close to that of a lossfree NLDC, while the linear losses shorten. It is found that the property of the cross state is greatly improved by counting the nonlinear losses : The cross-state output power and the output power ratio of two waveguides increase, and the cross state input power, that is, the switching power decreases.
- 社団法人電子情報通信学会の論文
- 1995-03-25
著者
-
Sugihara Okihiro
Faculty Of Engineering Shizuoka University
-
OKAMOTO Naomichi
Faculty of Engineering, Shizuoka University
-
Meng X
Fujikura Comp. Ltd.
-
Meng Xue
Fujikura Comp. Ltd.
-
Okamoto N
Shizuoka Univ. Dept. Of Electrical And Electronic Eng.
-
Okamoto Naomichi
Faculty Of Engineering Shizuoka University
-
Okamoto N
The Faculty Of Engineering Shizuoka University
関連論文
- A New Method for Accurately Measuring Temperature Dependence of Refractive Index
- Compact Y-Branch-Type Polymeric Optical Waveguide Devices with Large-Core Connectable to Plastic Optical Fibers
- Polymeric Optical Waveguide with Plastic Optical Fiber Guides for Passive Alignment Fabricated by Hot Embossing
- Electron-Beam Lithography and Thermal Development to Fluorinated Polyarylate
- Low-Birefringence Thermally and Environmentally Stable Slab Waveguide Planarized by Hot Embossing
- Two-Stage Optical Data Storage in Azo Polymers
- Light-Induced Surface Modification of Urethane-Urea Copolymer Film Used as Write-Once Optical Memory
- Topographical Change of Azopolymer Surface Induced by Optical Near-Field around Photo-Irradiated Nanoparticles (Special Issue on Organic Molecular Electronics for the 21st Century)
- Highly Active Second-Order Nonlinearity from Sol-Gel Processed Poled Silica and Germanosilicate Thin Film
- Thermally Stable and Resonance Enhanced Large Nonlinear Optical Properties in Poled Silica Films Doped with Thiazole Azo Dye
- Nonlinear Optical Properties of Poled Polymer of Phenoxy Resin Containing α-Cyano Unsaturated Carboxylate
- All-Optical Switching Property of an MQW-Sandwich Nonlinear Directional Coupler with Nonlinear Losses
- High-Density Optical Storage with Nanospheres on Surface Relief Structure
- Heat-Resistant Polyarylates for Waveguide-Type Device Application
- Second-Order Nonlinear Optical Properties from Poled Silicate Channel-Waveguide
- Second Harmonic Generation in Poled Polymer Films Doped with αCyano Unsaturated Carboxylic Acids
- Properties of a Strongly-Coupled Nonlinear Directional Coupler with a Lossy MQW Coupling Layer
- Low-Birefringence Thermally and Environmentally Stable Slab Waveguide Planarized by Hot Embossing
- Compact Y-Branch-Type Polymeric Optical Waveguide Devices with Large-Core Connectable to Plastic Optical Fibers
- Two-Way Holographic Image Storage in Photosensitive Polymers