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    Please use this identifier to cite or link to this item: http://ir.lib.ncu.edu.tw/handle/987654321/51026

    Title: Electrically tunable liquid crystal waveguide attenuators
    Authors: Cai,DP;Nien,SC;Chiu,HK;Chen,CC;Lee,CC
    Contributors: 光電科學與工程學系
    Date: 2011
    Issue Date: 2012-03-27 18:15:59 (UTC+8)
    Publisher: 國立中央大學
    Abstract: The attenuator for the wavelength at 1550 nm is fabricated by using the capillary effect to infiltrate liquid crystal (LC) E7 into hollow waveguides (HWGs) on silicon substrate with SiO(2) cladding layer. The length of the waveguide is 0.4 cm. The device can be operated with relatively low driving voltage below 5 V(pp) with the distance between two electrodes to be 9 mu m. The light attenuation of the device can be over 30 dB. The performance of the device is independent of the polarization states of the input light. (C) 2011 Optical Society of America
    Relation: OPTICS EXPRESS
    Appears in Collections:[光電科學與工程學系] 期刊論文

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