Improvements in or relating to optical switching

Details Improvements in or relating to optical switching Improvements in or relating to optical switching

G - Physics

02

F

G02F 1/19 (2006.01) G02B 6/12 (2006.01) G02F 1/01 (2006.01) H04B 10/18 (2006.01) G02B 6/28 (2006.01) G02B 6/34 (2006.01)

Patent

CA 2348368

Described herein is an integrated optical device (400) having an input path (402) and an output path (420). A waveguide (430) including a Bragg grating is located in the output path (42). A plurality of control elements are located along the waveguide (430) for providing local adjustment of the Bragg grating to compensate for manufacturing errors. The control elements are conveniently thermo-optic elements, for example, resistive elements whose temperature can be changed by supplying current to them.

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