Multimode interference-based fiber-optic displacement sensor

    Authors

    A. Mehta; W. Mohammed;E. G. Johnson

    Comments

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    Abbreviated Journal Title

    IEEE Photonics Technol. Lett.

    Keywords

    finite-difference beam-propagation method (FDBPM); linearly polarized; modes; multimode interference; reimaging theory; Engineering, Electrical & Electronic; Optics; Physics, Applied

    Abstract

    A new concept for a multimode interference-based fiber-optic displacement sensor is investigated both theoretically and experimentally. By applying multimode interference and reimaging theory to optical fibers, a displacement sensor consisting of only a section of multimode fiber fusion spliced to a single-mode fiber can be readily fabricated. Observation and analysis of the power reflected off of a surface and back through the device over a finite wavelength range provides enough information to use the device as a calibrated displacement sensor over a large displacement range.

    Journal Title

    Ieee Photonics Technology Letters

    Volume

    15

    Issue/Number

    8

    Publication Date

    1-1-2003

    Document Type

    Article

    Language

    English

    First Page

    1129

    Last Page

    1131

    WOS Identifier

    WOS:000184370500037

    ISSN

    1041-1135

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