Integrated-optic Demultiplexer for Variable Capacity Optical OFDM Signals Composed of Slab Star Coupler-type Optical DFT Circuit and Variable Optical Attenuators

摘要

I report a novel waveguide-type OFDM filter that can adaptively demultiplex 10 to 50 Gbaud symbol rate sub-carrier channels. It was fabricated with silica waveguide technology and the adoption of variable attenuators reduced loss variation when changing the filter characteristics.