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    In-Fiber Reflection Mode Interferometer Based on A Long-Period Grating For External Refractive-Index Measurement

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    Downloads: 767
    Date
    2005-04-01
    Author
    Kim, D. W.
    Zhang, Y.
    Cooper, K. L.
    Wang, Anbo
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    Abstract
    We present two novel schemes for refractometry based on a long-period fiber grating- (LPG-) based Michelson interferometer. These schemes are designed to overcome the measurement dependence of previously demonstrated LPG-based refractometry on the immersion depth. The first utilizes an unshielded LPG and the second, a shielded one. Both schemes were tested over a certain refractive-index range, and the measurement of glucose concentration in water was experimentally demonstrated. In addition, the temperature sensitivity of the two schemes is discussed. (c) 2005 Optical Society of America.
    URI
    http://hdl.handle.net/10919/46919
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    • Scholarly Works, Center for Photonics Technology [26]

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