| Presentation | 2005-06-24 Giant Electrorefractive Index Change in GaAs/AlGaAs Five-Layer Asymmetric Coupled Quantum Well (FACQW) and Its Application to High-Performance Optical Modulators Taro ARAKAWA, Hirokazu ITOH, Koji TAKADA, Kunio TADA, Joo Hyong NOH, Nobuo HANEJI, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | We have performed theoretical and experimental studies on five-layer asymmetric coupled quantum wells (FACQW) for giant electrorefractive index change Δn, and their application to high-performance optical modulators. The FACQW is expected to produce almost linear and giant electrorefractive (ER) sensitivity |dn/dF| under a small electric field F. By optimizing the MBE growth and fabrication procedures, we have successfully fabricated FACQW structures with good quality, and observed a giant ER sensitivity |dn/dF| of TE-mode light as large as 1.7×10^<-4> cm/kV. By employing traveling-wave electrodes, ultrafast and low-voltage optical modulators will be realized. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Quantum well / Molecular Beam Epitaxy (MBE) / Optical Modulator / Electrorefractive Effect |
| Paper # | OPE2005-25,LQE2005-24 |
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| Conference Information | |
| Committee | LQE |
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| Conference Date | 2005/6/17(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
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| Paper Information | |
| Registration To | Lasers and Quantum Electronics (LQE) |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Giant Electrorefractive Index Change in GaAs/AlGaAs Five-Layer Asymmetric Coupled Quantum Well (FACQW) and Its Application to High-Performance Optical Modulators |
| Sub Title (in English) | |
| Keyword(1) | Quantum well |
| Keyword(2) | Molecular Beam Epitaxy (MBE) |
| Keyword(3) | Optical Modulator |
| Keyword(4) | Electrorefractive Effect |
| 1st Author's Name | Taro ARAKAWA |
| 1st Author's Affiliation | Graduate School of Eng., Yokohama National Univ.() |
| 2nd Author's Name | Hirokazu ITOH |
| 2nd Author's Affiliation | Graduate School of Eng., Yokohama National Univ. |
| 3rd Author's Name | Koji TAKADA |
| 3rd Author's Affiliation | Graduate School of Eng., Yokohama National Univ. |
| 4th Author's Name | Kunio TADA |
| 4th Author's Affiliation | Graduate School of Eng., Kanazawa Institute of Technology |
| 5th Author's Name | Joo Hyong NOH |
| 5th Author's Affiliation | Yokogawa Electric Corporation |
| 6th Author's Name | Nobuo HANEJI |
| 6th Author's Affiliation | Graduate School of Eng., Yokohama National Univ. |
| Date | 2005-06-24 |
| Paper # | OPE2005-25,LQE2005-24 |
| Volume (vol) | vol.105 |
| Number (no) | 143 |
| Page | pp.pp.- |
| #Pages | 6 |
| Date of Issue | |