Crystalline organic semiconductor optical directional couplers and switches using an index-matching layer
- 1 April 1992
- journal article
- Published by Institute of Electrical and Electronics Engineers (IEEE) in IEEE Photonics Technology Letters
- Vol. 4 (4) , 365-368
- https://doi.org/10.1109/68.127215
Abstract
A directional coupler using crystalline organic semiconductor waveguides grown by the vacuum process of organic molecular beam deposition is demonstrated. An index-matching layer placed between two coupled waveguides separated by a 1 mu m gap greatly increases the coupling coefficient, significantly decreasing the coupling length and making the device very compact. Switching of 1.06 mu m wavelength light from one guide to another in the coupler has been observed by pumping the surface of one guide in the coupling region with 0.514 mu m.Keywords
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