Array waveguide grating and method of manufacture thereof
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United States of America Patent
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Apr 29, 2003
Grant Date -
Jan 9, 2003
app pub date -
Aug 2, 2001
filing date -
Dec 9, 1999
priority date (Note) -
Expired
status (Latency Note)
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Abstract
The present invention relates to an array waveguide grating and a method of manufacture thereof, in which a substantially smooth wavelength-loss characteristics is obtained in a pass band, rather than increasing the loss. In an array waveguide grating (10), wavelength multiplex division signal light is demultiplexed by a channel waveguide array (15), reflected by a Fabry-Perot resonator array (16), and passed through the channel waveguide array (15) again, so that a substantially smooth wavelength-loss characteristic is obtained in the pass band, rather than increasing the loss.
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