| Project/Area Number |
26600112
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| Research Category |
Grant-in-Aid for Challenging Exploratory Research
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| Allocation Type | Multi-year Fund |
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| Research Field |
Optical engineering, Photon science
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| Research Institution | The University of Tokyo |
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Principal Investigator |
Tanemura Takuo 東京大学, 工学(系)研究科(研究院), 准教授 (90447425)
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| Project Period (FY) |
2014-04-01 – 2016-03-31
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| Project Status |
Completed (Fiscal Year 2015)
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| Budget Amount *help |
¥3,900,000 (Direct Cost: ¥3,000,000、Indirect Cost: ¥900,000)
Fiscal Year 2015: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Fiscal Year 2014: ¥2,210,000 (Direct Cost: ¥1,700,000、Indirect Cost: ¥510,000)
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| Keywords | 集積フォトニクス / 半導体レーザー / プラズモニクス / 半導体レーザ / 光インターコネクト / 光集積回路 |
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| Outline of Final Research Achievements |
In this project, we aimed to develop sub-micrometer-scale semiconductor lasers to be integrated in the future ultra-dense photonic integrated circuits. First, we have proposed a novel capsule-shaped metallic-cavity structure to enhance the Q factor while reducing the footprint. By introducing sidewalls with optimal curvature, we have demonstrated both numerically and experimentally dramatic increase in cavity Q factor. We have then designed optimal metallic-cavity laser structure coupled to an InP waveguide and developed the fabrication process. Finally, to achieve electrically pumped lasing operation, we have constructed a novel numerical method that takes into account optical, electrical, and thermal properties self-consistently, and successfully derived the optimal structure.
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