Abstract

A compact, low-loss, optical power splitter based on inverse tapers is proposed and fabricated on a silicon-on-insulator platform. High efficiency mode evolution between the fundamental mode of the input waveguide and the super mode of the output waveguides is realized using optimized tapers. A 1×4 splitter with insertion loss lower than 0.4 dB and uniformity better than 0.68 dB in a wavelength range from 1510 to 1550 nm are demonstrated within a footprint of only 75μm2. These properties are very promising for ultrahigh density photonic integration applications.

© 2013 Optical Society of America

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