• Acta Photonica Sinica
  • Vol. 34, Issue 7, 1062 (2005)
[in Chinese], [in Chinese], [in Chinese], and [in Chinese]
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  • [in Chinese]
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    DOI: Cite this Article
    [in Chinese], [in Chinese], [in Chinese], [in Chinese]. Three-component Hybrid-integrated Optical Acceleration Seismic Geophone Based on Photoelastic Waveguide[J]. Acta Photonica Sinica, 2005, 34(7): 1062 Copy Citation Text show less

    Abstract

    In order to provide a high resolution wide band geophone for three-dimensional seismic geophone, the three-component hybrid-integrated optical acceleration seismic geophone is designed. Analysing the photoelastic effect of LiNbO_3 waveguide applied arbitrary-direction acceleration. The Mach-Zehnder interferometer is realized by symmetrical Y-branching waveguide,waveguide phase modulator and two waveguide polarizers, which are monolithically integrated on an X-cut, Y-propagating LiNbO_3 substrate. The results reveal that the accelerometer has wide band and good linearity. The main design parameters of the geophone system is as following: natural frequency:4300 Hz;phase detection sensitivity Δ/a: 1.81×10 -4 rad/m·s -2 ;work frequency range: 3~1506 Hz..
    [in Chinese], [in Chinese], [in Chinese], [in Chinese]. Three-component Hybrid-integrated Optical Acceleration Seismic Geophone Based on Photoelastic Waveguide[J]. Acta Photonica Sinica, 2005, 34(7): 1062
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