Wavelength-division-multiplexing and -demultiplexing by using a substrate-mode grating pair
- 15 November 1992
- journal article
- Published by Optica Publishing Group in Optics Letters
- Vol. 17 (22), 1629-1631
- https://doi.org/10.1364/ol.17.001629
Abstract
We present theoretical and experimental studies of a novel substrate-mode grating pair structure for wavelength-division-multiplexing/demultiplexing applications. Normally incident coupling and on-axis output imaging with this device provide easier alignment with coupled optical fibers. We have designed and fabricated wavelength-division-multiplexing devices that are implemented by polarization-insensitive high-efficiency (> 85%) substrate-mode holograms. Three-channel demultiplexing experiments have also been successfully demonstrated with the limited available wavelength range of our diode-laser system.Keywords
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