AWG supporting multiple frequency bands and channel plans through respective multiple inputs
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United States of America Patent
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Nov 15, 2016
Grant Date -
Apr 12, 2012
app pub date -
Oct 12, 2011
filing date -
Oct 12, 2010
priority date (Note) -
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Abstract
Roughly described, an AWG has two or more inputs and multiple outputs. By selecting the angular spacing among the inputs, and by designing the different inputs to address different orders of the waveguide array, the device can be designed such that the inputs will carry frequency bands having any desired center frequency spacing and any desired same or different channel spacing. For example a dual input device can be designed such that one input carries C-band channels and the other input carries L-band channels, and both have channel spacings that match or substantially match the ITU grid.
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