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DIRECTIONAL OPTICAL COUPLER WITH WAVELENGTH SELECTION |
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Principal Investigator: H. BENISTY
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TECHNICAL DESCRIPTION
This invention describes a device for directional optical coupling which is selective for wavelength. Coupling is performed between two parallel waveguides separated by a coupling zone that allows extraction of a specific frequency. The signal is injected into the fundamental mode of the waveguide and the specific frequency is extracted by coupling the fundamental mode with a higher order mode of each waveguide. The coupling zone is performed using photonic crystal technology.
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