Paper
23 October 1992 Novel substrate-mode grating structure for wavelength-division demultiplexing
Author Affiliations +
Proceedings Volume 1813, Optoelectronic Component Technologies; (1992) https://doi.org/10.1117/12.131251
Event: International Symposium on Optoelectronics in Computers, Communications, and Control, 1992, Hsinchu, Taiwan
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.
© (1992) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Yang-Tung Huang, Der-Chin Su, and Yi-Kong Tsai "Novel substrate-mode grating structure for wavelength-division demultiplexing", Proc. SPIE 1813, Optoelectronic Component Technologies, (23 October 1992); https://doi.org/10.1117/12.131251
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KEYWORDS
Diffraction

Holograms

Reflection

Diffraction gratings

Modulation

Wave propagation

3D image reconstruction

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