G - Physics – 02 – B
Patent
G - Physics
02
B
G02B 6/126 (2006.01) G02B 6/12 (2006.01) G02B 6/34 (2006.01)
Patent
CA 2233849
A method and device for compensating the birefringence normally associated with an integrated optical waveguide grating device has a polarization compensating slab waveguide region. This compensating region can be provided within the slab waveguide region normally present in the grating device by etching, doping, ion implanting a sub-region of a predetermined shape and dimension to change its birefringence. Alternatively, or in combination with changing the birefringence in this sub-region, electrodes can be provided for electro- optically changing the birefringence dynamically as required. This method and device can be applied to reflective and transmissive diffraction gratings and to phased array waveguide gratings.
Delage Andre
Erickson Lynden E.
He Jian-Jun
Koteles Emil S.
Lamontagne Boris
Delage Andre
Erickson Lynden E.
Freedman Gordon
He Jian-Jun
Koteles Emil S.
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