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Low loss coupling to sub-micron thin film deposited rib and nanowire waveguides by vertical tapering

Madden, Steve; Jin, Zhe; Debbarma, Sukhanta; Bulla, Douglas; Luther-Davies, Barry


Many structures containing lateral taper waveguide in previous papers showed quite high experimental loss. A vertical tapered waveguide of both rib and nanowire waveguides together with SU8 lateral tapered waveguide for mode size conversion to single mode fibre has been designed. Taper shape profile, offset tolerance have been investigated and get overlapping loss of less than 0.1 dB and 97% coupling efficiency.

CollectionsANU Research Publications
Date published: 2011
Type: Conference paper
Source: Proceedings of the International Quantum Electronics Conference and Conference on Lasers and Electro-Optics Pacific Rim 2011
DOI: 10.1109/IQEC-CLEO.2011.6193910


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