Air-Trench Splitters for Ultra-Compact Ring Resonators in Low Refractive Index Contrast Waveguides

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Permanent URL	http://hdl.lib.byu.edu/1877/2149
Title	Air-Trench Splitters for Ultra-Compact Ring Resonators in Low Refractive Index Contrast Waveguides
BYU Creator	Kim, Seunghyun Nordin, Gregory P.
Creator	Lin, Yongbin Rahmanian, Nazli
Keywords	integrated optics; polymer waveguides; beam splitters; resonators; photonic integrated circuits
Description/Abstract	We demonstrate air-trench splitters in low index contrast perfluorocyclobutyl (PFCB) waveguides. Splitters are fabricated by etching 800 nm wide high aspect ratio (18:1) trenches. The measured optical loss is 0.4 dB/splitter. The reflection/transmission splitting ratio is 0.859/0.141, which closely matches two-dimensional finite difference time domain (2DFDTD) simulation results. Air-trench splitters and bends are used to demonstrate an ultra-compact ring resonator (RR) with a size reduction of 1,700 compared to a RR based on traditional curved waveguides in the same material system. A comparison between the RR’s measured and analytically calculated performance shows close agreement when splitter and bend losses are taken into account.
Source	N. Rahmanian, S. Kim, Y. Lin, G. P. Nordin, "Air-trench splitters for ultra-compact ring resonators in low refractive index contrast waveguides" Optics Express 16(1), pp. 456-465 (2008). http://www.opticsexpress.org/abstract.cfm?id=148708.;
Publisher	Optical Society of America
Date Original	2008
Date Digital	2010-03-03
Language	English eng en
Publication Type	Articles
Type	Text
Format	application/pdf
Owning Institution	Brigham Young University
BYU College	Ira A. Fulton College of Engineering and Technology
BYU Department	Electrical and Computer Engineering
Copyright Status	(c) 2008 Optical Society of America;
Copyright Use Information	http://www.lib.byu.edu/generic_copyright.html

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Air-Trench Splitters for Ultra-Compact Ring Resonators in Low Refractive Index Contrast Waveguides

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