Open AccessCascade wide-angle Y-junction 1 × 16 optical power splitter based on silicon wire waveguides on silicon-on-insulator
Author(s) -
Shaohua Tao,
FengLing Qing,
Jun-Feng Song,
Mingbin Yu,
GuoQiang Lo,
DimLee Kwong
Publication year - 2008
Publication title -
optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.16.021456
Subject(s) - splitter , silicon on insulator , materials science , optics , silicon , optical power , cascade , optoelectronics , power dividers and directional couplers , insertion loss , physics , laser , chemistry , chromatography
A 1 x 16 optical power splitter with wide splitting angle, uniform outputs, and low excess loss is demonstrated. The 1 x 16 splitter comprising cascaded 1 x 2 splitters with arc-shaped branching waveguides is fabricated on the silicon-on-insulator (SOI) substrate. The gap between the branching waveguides is widened in a short propagation length such that influences of etch residues and air voids in the gap on the optical power uniformity are reduced significantly. The measured power uniformity of the 1 x 16 splitter is better than 0.3 dB at wavelength of 1550 nm.