GexSi1−x optical directional coupler
- 17 June 1991
- journal article
- research article
- Published by AIP Publishing in Applied Physics Letters
- Vol. 58 (24) , 2744-2745
- https://doi.org/10.1063/1.104773
Abstract
We have fabricated and characterized the first GexSi1−x optical directional couplers. These structures were fabricated from GexSi1−x grown by rapid thermal processing chemical vapor deposition. The average attenuation of single, straight waveguide sections was 3.3 dB/cm at a wavelength of 1.52 μm. For the directional couplers, the coupling coefficient was 3.9 cm−1 for a waveguide separation of 1.5 μm.Keywords
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