Efficient coupler between chip-level and board-level optical waveguides

Abstract

We propose an efficient optical coupler between a submicrometer-sized silicon waveguide on a silicon photonic chip and a multi-micrometer wide polymer waveguide on an optical printed circuit board for interchip optical networks. We show low coupling loss $<0.4\mathrm{dB}$ with high lateral and angular tolerance to misalignment so that coupling can be done by automatic pick-and-place equipments with high throughput and low cost. The coupler has a wide optical bandwidth from $1470$ to $1650\mathrm{nm}$.

© 2011 Optical Society of America

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