| Presentation | 1996/1/18 Design and preliminary experiments on 3rd-order grating coupler for high efficiency Takayoshi Fujii, Shougo Ura, Toshiaki Suhara, Hiroshi Nishihara, |
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| PDF Download Page | PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | A grating coupler utilizing higher-order diffraction is interesting and may increase design flexibility because of its much longer grating period compared to a conventional 1st-order grating coupler. Integration of reflection layer beneath the grating coupler was studied to provide high coupling efficiency of a guided wave to a beam radiated by higher-order diffraction into the air. Coupling efficiency of a guided wave to each diffraction beam depends strongly upon thickness of layers consisting the waveguides because of interference between diffraction and reflection beams. A 3rd order grating coupler of 1.86μm period was designed, fabricated and characterized for 0.82μm wavelength in a glass waveguide. Output coupling efficiency of 40% was experimentally obtained. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | optical integrated circuit / grating coupler / 3rd-order diffraction / thin film optical waveguide / coupling efficincy |
| Paper # | OPE95-124 |
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| Conference Information | |
| Committee | OPE |
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| Conference Date | 1996/1/18(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | |
| Chair | |
| Vice Chair | |
| Secretary | |
| Assistant | |
| Paper Information | |
| Registration To | Optoelectronics (OPE) |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Design and preliminary experiments on 3rd-order grating coupler for high efficiency |
| Sub Title (in English) | |
| Keyword(1) | optical integrated circuit |
| Keyword(2) | grating coupler |
| Keyword(3) | 3rd-order diffraction |
| Keyword(4) | thin film optical waveguide |
| Keyword(5) | coupling efficincy |
| 1st Author's Name | Takayoshi Fujii |
| 1st Author's Affiliation | Department of Electronic Engineering, Faculty of Engineering, Osaka University() |
| 2nd Author's Name | Shougo Ura |
| 2nd Author's Affiliation | Department of Electronic Engineering, Faculty of Engineering, Osaka University |
| 3rd Author's Name | Toshiaki Suhara |
| 3rd Author's Affiliation | Department of Electronic Engineering, Faculty of Engineering, Osaka University |
| 4th Author's Name | Hiroshi Nishihara |
| 4th Author's Affiliation | Department of Electronic Engineering, Faculty of Engineering, Osaka University |
| Date | 1996/1/18 |
| Paper # | OPE95-124 |
| Volume (vol) | vol.95 |
| Number (no) | 459 |
| Page | pp.pp.- |
| #Pages | 6 |
| Date of Issue | |