Title

Multimode Interference-Based Fiber-Optic Displacement Sensor

Keywords

Finite-difference beam-propagation method (FDBPM); Linearly polarized modes; Multimode interference; Reimaging theory

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.

Publication Date

8-1-2003

Publication Title

IEEE Photonics Technology Letters

Volume

15

Issue

8

Number of Pages

1129-1131

Document Type

Article

Personal Identifier

scopus

DOI Link

https://doi.org/10.1109/LPT.2003.815338

Socpus ID

0041522797 (Scopus)

Source API URL

https://api.elsevier.com/content/abstract/scopus_id/0041522797

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