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Add-drop filters based on microring resonators were fabricated in silicon-rich silicon nitride. Third-order microring filters showed an 80 GHz bandwidth, a 4 dB loss from input to drop, and a 24 nm free spectral-range.
Optical Fiber Communication Conference, 2004. OFC 2004 (Volume:1 )
Date of Conference: 23-27 Feb. 2004