Recirculating photonic filter: a wavelength-selective time delay for phased-array antennas and wavelength code-division multiple access
- PMID: 19876143
- DOI: 10.1364/ol.21.000740
Recirculating photonic filter: a wavelength-selective time delay for phased-array antennas and wavelength code-division multiple access
Abstract
A novel wavelength-selective photonic time-delay filter is proposed and demonstrated. The device consists of an optical phased-array waveguide grating in a recirculating feedback configuration. It can function as a true-time-delay generator for squint-free beam steering in optically controlled phased-array antennas and as an encoding-decoding filter for wavelength code-division multiple access.
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