Novel substrate-mode grating structure for wavelength-division demultiplexing

Yang-Tung Huang; Der-Chin Su; Yi-Kong Tsai

doi:10.1117/12.131251

23 October 1992 Novel substrate-mode grating structure for wavelength-division demultiplexing

Yang-Tung Huang, Der-Chin Su, Yi-Kong Tsai

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.

Citation Download Citation

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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