| Project/Area Number |
15K13988
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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 |
Communication/Network engineering
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| Research Institution | The University of Electro-Communications |
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Principal Investigator |
Matsuura Motoharu 電気通信大学, 大学院情報理工学研究科, 准教授 (40456281)
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| Project Period (FY) |
2015-04-01 – 2017-03-31
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| Project Status |
Completed (Fiscal Year 2016)
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| Budget Amount *help |
¥3,900,000 (Direct Cost: ¥3,000,000、Indirect Cost: ¥900,000)
Fiscal Year 2016: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2015: ¥2,470,000 (Direct Cost: ¥1,900,000、Indirect Cost: ¥570,000)
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| Keywords | 光A/D変換 / 光量子化 / 半導体光増幅器 / 量子ドット半導体光増幅器 / 周波数チャープ / 光アナログ・デジタル変換 / 利得飽和 / 利得回復時間 |
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| Outline of Final Research Achievements |
In this work, we propose a novel optical quantization technique for photonic analog-to-digital (A/D) conversions based on intensity-to-frequency conversion using frequency chirp in a semiconductor optical amplifier (SOA). To show the feasibility of this technique, we experimentally demonstrated 10-GSamples/s optical quantization using a quantum-dot SOA (QD-SOA), because we show the capability of ultrahigh-speed operation of the photonic A/D conversion. As a result, we successfully achieved 4-level optical quantization using the QD-SOA. The presented scheme has a simple configuration and possibility of the monolithic integration. The obtained results show that the presented scheme is useful for future photonic analog-to-digital conversions.
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