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Proceedings Paper

Novel substrate-mode grating structure for wavelength-division demultiplexing
Author(s): Yang-Tung Huang; Der-Chin Su; Yi-Kong Tsai
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Paper Abstract

A novel substrate-mode grating pair structure for wavelength-division-demultiplexing (DEMUX) application is presented. An input grating coupler diffracts normally incident beams at an angle beyond the critical angle in the dielectric substrate. The diffracted beams then propagate through the substrate with total internal reflection to the output coupling grating and are separated for different wavelengths. Normally incident coupling and output on- axis imaging with this structure provide easier alignment with optical fibers. Three types of substrate-mode grating pairs providing the property of polarization-insensitive high-efficiency are investigated.

Paper Details

Date Published: 23 October 1992
PDF: 8 pages
Proc. SPIE 1813, Optoelectronic Component Technologies, (23 October 1992); doi: 10.1117/12.131251
Show Author Affiliations
Yang-Tung Huang, National Chiao Tung Univ. (Taiwan)
Der-Chin Su, National Chiao Tung Univ. (Taiwan)
Yi-Kong Tsai, National Chiao Tung Univ. (Taiwan)

Published in SPIE Proceedings Vol. 1813:
Optoelectronic Component Technologies
GouChung Chi; Chi-Shain Hong, Editor(s)

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