Lithium Nibate Disk Sensor Using Photonic Heterodyning
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概要
- 論文の詳細を見る
We demonstrate a highly sensitive electro-optic sensor based on a LiNbO3 disk resonator with high-$Q$ whispering gallery modes. In this sensor, the electric field is measured by observing a frequency shift of the disk resonator via the Pockels effect. The measured electro-optic signal is downconverted to 150 kHz by a photonic heterodyne method and detected by a low cost (slow) photodiode. At multiple frequencies within the free spectral range, a sensitivity enhancement is achieved. The minimum detectable input power into a 50-$\Omega$ microstrip line used as a test device was $-60.5$ dBm.
- Japan Society of Applied Physicsの論文
- 2009-08-25
著者
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Sasagawa Kiyotaka
National Institute Of Information And Communications Technology
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Tsuchiya Masahiro
National Defense Academy
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