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Design and fabrication of ultra-small overlapped AWG demultiplexer based on α-Si nanowire waveguides

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4 Author(s)
D. Dai ; Centre for Opt. & Electromagn. Res., Zhejiang Univ., Zijingang, China ; L. Liu ; L. Wosinski ; S. He

A novel layout for an ultra-compact arrayed-waveguide grating (AWG) demultiplexer is presented. The present layout has two overlapped free propagation regions, and is more compact than a conventional layout. Using αSi-on-SiO2 nanowire waveguides, an ultra-small 4×4 AWG (about 40×50 μm2) with channel spacing of 11 nm is fabricated and characterised.

Published in:

Electronics Letters  (Volume:42 ,  Issue: 7 )