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2009
Journal Article
Titel
Ultra low-loss 1×2 multiplexer using thin-film filters on polymer integration platform
Abstract
Compact 1×2 wavelength multiplexer modules employing thin-film filters integrated into polymer planar waveguide circuits are presented. The modules also feature on-chip deep-etched U-grooves for precise fibre-chip coupling. Insertion loss less than 1 dB, crosstalk less than -30 dB, and return loss less than -50 dB have been achieved by various technological optimisations..