Investigation on the optical properties of side-polished fiber contacted with planar waveguide including a thin metal film

Kwang-Taek Kim; Jung Ho Hwang; Jun Ock Lee; Jae Pyung Mah; Cheol Ho Kim; Seung Hwangbo

doi:10.1117/1.1539862

1 March 2003 Investigation on the optical properties of side-polished fiber contacted with planar waveguide including a thin metal film

Kwang-Taek Kim, Jung Ho Hwang, Jun Ock Lee, Jae Pyung Mah, Cheol Ho Kim, Seung Hwangbo

Author Affiliations +

Optical Engineering, Vol. 42, Issue 3, (March 2003). https://doi.org/10.1117/1.1539862

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.

©(2003) Society of Photo-Optical Instrumentation Engineers (SPIE)

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Kwang-Taek Kim, Jung Ho Hwang, Jun Ock Lee, Jae Pyung Mah, Cheol Ho Kim, and Seung Hwangbo "Investigation on the optical properties of side-polished fiber contacted with planar waveguide including a thin metal film," Optical Engineering 42(3), (1 March 2003). https://doi.org/10.1117/1.1539862

Published: 1 March 2003

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