An Optical Add-Drop Multiplexer with a Grating-Loaded Directional Coupler in Silica Waveguides∗
نویسندگان
چکیده
An optical add-drop multiplexer with a gratingloaded directional coupler in silica waveguides is demonstrated. The device for this configuration has a large fabrication tolerance and is small in size. A new scheme, in which the coupling length of the directional coupler is twice the complete coupling length, enables low cross-talk for both add and drop operations. This device is polarization-independent due to its relatively lowtemperature process. key words: Bragg grating, silica waveguide, optical add-drop
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