| Budget Amount *help |
¥23,790,000 (Direct Cost: ¥18,300,000、Indirect Cost: ¥5,490,000)
Fiscal Year 2020: ¥6,630,000 (Direct Cost: ¥5,100,000、Indirect Cost: ¥1,530,000)
Fiscal Year 2019: ¥5,070,000 (Direct Cost: ¥3,900,000、Indirect Cost: ¥1,170,000)
Fiscal Year 2018: ¥5,850,000 (Direct Cost: ¥4,500,000、Indirect Cost: ¥1,350,000)
Fiscal Year 2017: ¥6,240,000 (Direct Cost: ¥4,800,000、Indirect Cost: ¥1,440,000)
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| Outline of Final Research Achievements |
To develop smart materials and structures, we have drastically improved the performance of distributed optical fiber sensors based on Brillouin scattering, called Brillouin optical correlation-domain reflectometry (BOCDR). Our achievements include (1) extended strain dynamic range of high-speed BOCDR, (2) enhanced sensitivity and stability by polarization manipulation, (3) system miniaturization and cost reduction by various optimizations, and (4) clarification of Brillouin scattering properties in plastic optical fibers (POFs) and POF-based BOCDR operation with the world-highest sampling rate. We have also demonstrated high-sensitivity magnetic field sensing using "fused" POFs.
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