Optical directional coupler based on Si-wire waveguides
- 22 February 2005
- journal article
- Published by Institute of Electrical and Electronics Engineers (IEEE) in IEEE Photonics Technology Letters
- Vol. 17 (3), 585-587
- https://doi.org/10.1109/lpt.2004.840926
Abstract
We fabricated optical directional couplers with Si-wire waveguides and demonstrated their fundamental characteristics. Their coupling-length was extremely short, several micrometers, because of strong optical coupling between the waveguide cores. Wavelength demultiplexing functions were also demonstrated for devices with a long coupled waveguide. Optical output from a device 800 μm long changed reciprocally with 2.5-nm wavelength spacing between the parallel and cross ports.Keywords
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