2012 Fiscal Year Final Research Report
Study on ultra-high-resolution active fiber-optic sensors for the measurement of the Earth
| Project/Area Number |
23656262
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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 |
Measurement engineering
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| Research Institution | The University of Tokyo |
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Principal Investigator |
HE Zuyuan 東京大学, 大学院・工学系研究科, 特任教授 (70322047)
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| Co-Investigator(Renkei-kenkyūsha) |
HOTATE Kazuo 東京大学, 大学院・工学系研究科, 教授 (60126159)
TOKUNAGA Tomochika 東京大学, 大学院・新領域創成科学研究科, 教授 (70237072)
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| Project Period (FY) |
2011 – 2012
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| Keywords | センシングデバイ / 地球計測 / ファイバレーザ / 偏波維持 / 複屈折 / 歪計測 / 地震研究 |
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| Research Abstract |
In this project, a novel multiplexed active fiber-optic strain sensor based on ultra-nano-linewidth DBR fiber laser has been proposed, and strain sensing with ultra-high strain resolution down to nano-strain at 1-100Hz low-frequency region has been demonstrated. This technique can be expected to provide crustal deformation monitoring solutions that can be built and maintained at multiple locations at reasonable cost for Earth measurement, especially for earthquake studies. Related to the achievements of this project, 4 peer-reviewed journal papers and 19 international and domestic conference papers have been published.
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