Experimental demonstration of photonic crystal directional coupler at microwave frequencies
- 1 January 2003
- journal article
- Published by Institution of Engineering and Technology (IET) in Electronics Letters
- Vol. 39 (5), 455-456
- https://doi.org/10.1049/el:20030317
Abstract
The performance of a directional coupler based on photonic crystal waveguides is theoretically studied and experimentally verified at microwave frequencies. Simulation results using a time domain method confirm the theoretical analysis and show a good agreement with the measurements. It is shown that coupling lengths as short as 3.5λ can be attained from this approach. Photonic crystal directional couplers are envisaged as a key building-block in ultra-compact photonic integrated circuits such as optical modulators, wavelength demultiplexers or optical switches based on photonic crystal technology.Keywords
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