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SU8 3D prisms with ultra small inclined angle for low-insertion-loss fiber/waveguide interconnection.

作者信息

Nguyen Minh-Hang, Chang Chia-Jung, Lee Ming-Chang, Tseng Fan-Gang

机构信息

Department of Engineering and System Science, National TsingHua University, Hsinchu, Taiwan.

出版信息

Opt Express. 2011 Sep 26;19(20):18956-64. doi: 10.1364/OE.19.018956.

DOI:10.1364/OE.19.018956
PMID:21996837
Abstract

This paper presents a simple method for fabricating SU8 three dimensional (3D) prisms with very small inclined-angles for optical-fiber/planar-waveguide interconnection with low insertion-loss by combining self-filling, molding and nano-lithography processes on plane surface. The prisms possess ultra low 3D inclined angle of 0.6° and a small surface roughness of 3.5 nm. It is demonstrated that the transmission efficiency of SOI waveguides improved about 4.6 times at the presence of SU8 prisms with a coupling loss of 11 dB per taper and radiation loss of 2.4 dB per taper.

摘要

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