&lt;title&gt;New Method Of Coherent Frequency Channelization&lt;/title&gt;

Alexander, Edward M.; Spezio, Anthony E.

doi:10.1117/12.933928

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2001

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“…Generally, AO systems are limited in bandwidth to a few gigahertz [4] and, thus, are not suitable for the extremely wide-band applications. Optical techniques for channelizing and frequency-translating wide-band RF signals have been proposed [5] and etalon-based, as well as grating-based channelizers have been built [6], [7]. Additionally wide-band optical channelization can be realized using passive guided-wave optic dispersive components, such as arrayed waveguide gratings (AWGs) [8], fiber Bragg gratings, or fiber Fabry-Perots.…”

Section: Introductionmentioning

confidence: 99%

Characterization of a coherent optical RF channelizer based on a diffraction grating

Wang

Davis

Jung

et al. 2001

IEEE Trans. Microwave Theory Techn.

161

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A coherent optical RF channelizer has been constructed and characterized. The optical channelizer is based on a free-space optical diffraction grating, and utilizes coherent optical heterodyne detection to translate all of the frequency channels to a common intermediate frequency (IF). The designed optical channelizer has a 1-GHz channel spacing, and a nominal 5-GHz IF, and can offer an instantaneous bandwidth greater than 100 GHz. The channelizing receiver has been characterized for its frequency response, crosstalk, and spur-free dynamic range, and the results are in a good agreement with the theoretical values.

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