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

Jie Shu, Ciyuan Qiu, Xuezhi Zhang, Qianfan Xu
2011 Optics Letters  
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 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 nm.
doi:10.1364/ol.36.003614 pmid:21931408 fatcat:ze7vzh2tjzcsdaxv4x7pi66zmi