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Optical Engineering

Investigation on the optical properties of side-polished fiber contacted with planar waveguide including a thin metal film
Author(s): Kwang-Taek Kim; Jung Ho Hwang; Jun Ock Lee; Jae Pyung Mah; Cheol Ho Kim; Seung Hwangbo
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Paper Abstract

We investigate the characteristics of an asymmetric directional coupler made of side-polished fiber and multimode planar waveguide incorporating a thin metal film. The influence of the metal film thickness and the refractive index of the superstrate on the spectral and polarization properties of the coupler is measured and explained based on the weakly coupled model. It is shown that the coupler behaves like a band-rejection filter or a polarizer, depending on the device parameters. The application possibilities of the sensors to measure the thickness of thin metal film and the refractive index of the liquid are also observed.

Paper Details

Date Published: 1 March 2003
PDF: 7 pages
Opt. Eng. 42(3) doi: 10.1117/1.1539862
Published in: Optical Engineering Volume 42, Issue 3
Show Author Affiliations
Kwang-Taek Kim, Honam Univ. (South Korea)
Jung Ho Hwang, Honam Univ. (South Korea)
Jun Ock Lee, Honam Univ. (South Korea)
Jae Pyung Mah, Honam Univ. (South Korea)
Cheol Ho Kim, Honam Univ. (South Korea)
Seung Hwangbo, Honam Univ. (South Korea)

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