| Project/Area Number |
23860013
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| Research Category |
Grant-in-Aid for Research Activity Start-up
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| Allocation Type | Single-year Grants |
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| Research Field |
Applied optics/Quantum optical engineering
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| Research Institution | The University of Tokyo |
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Principal Investigator |
WEI Dong 東京大学, 大学院・工学系研究科, 特任研究員 (70610418)
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| Project Period (FY) |
2011 – 2012
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| Project Status |
Completed (Fiscal Year 2012)
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| Budget Amount *help |
¥3,250,000 (Direct Cost: ¥2,500,000、Indirect Cost: ¥750,000)
Fiscal Year 2012: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2011: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
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| Keywords | 光学計測 / 長さ計測 / 標準 / フェムト秒光周波数コム / トレーサビリティー / 校 正システム / 光ファイバー / ネットワーク / 光周波数コム / パルス列間隔 / 長さ標準 / 空気 / 揺らぎ / 屈折率 |
|---|
| Research Abstract |
The possibility of using an adjacent pulse repetition interval length (APRIL) as a scale is investigated. In an experiment, an APRIL was measured by using a Helium-Neon interferometer, and the measurement was compared with the result of a direct frequency count. The difference was a few hundred nanometers, and thus the APRIL’s effectiveness as a length scale was confirmed. The present concept and analysis pave the way for the development of the remote transfer of APRIL as a length standard via fiber networks.
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