G - Physics – 02 – B
Patent
G - Physics
02
B
345/56, 88/97.5
G02B 6/26 (2006.01) G02B 6/34 (2006.01) G02B 6/42 (2006.01) G02B 6/12 (2006.01)
Patent
CA 1303887
TITLE WAVELENGTH SELECTIVE OPTICAL DEVICES USING OPTICAL DIRECTIONAL COUPLER INVENTORS Kenneth O. Hill Derwyn C. Johnson Francois Bilodeau Sylvain Faucher ABSTRACT OF THE DISCLOSURE New types of narrowband wavelength selective optical devices are described. Various configurations are possible, according to the inven- tion, that perform as narrowband wavelength selective transmission or reflection filters or as narrowband wavelength selective optical taps or combiners. The optical devices of the invention include a 3 dB optical directional coupler and wavelength selecting elements such as Bragg reflection gratings or Fabry-Perot resonators usually positioned in optical symmetry with respect to the directional coupler. Two or more wavelength selecting elements can be used to obtain desired filtering characteristics.
582056
Bilodeau Francois
Faucher Sylvain
Hill Kenneth O.
Johnson Derwyn C.
As Represented By The Ministe R. Of Communications Her Majesty The Queen In Right Of Canada
Bilodeau Francois
Faucher Sylvain
Hill Kenneth O.
Johnson Derwyn C.
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