Co-polymer clad design for high performance athermal photonic circuits
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Kimerling_Co-polymer clad.pdf
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Author(s)
Raghunathan, Vivek
Xu, Jingjing
Michel, Jurgen
Gleason, Karen K.
Kimerling, Lionel C.
Yague, Jose Luis
Date Issued
August 2012
Journal
Optics Express
Publisher
Optical Society of America
Citation
Raghunathan, Vivek et al. “Co-polymer Clad Design for High Performance Athermal Photonic Circuits.” Optics Express 20.19 (2012): 20808. © 2012 OSA
Version
Final published version
Abstract
Ubiquitous, low power consumption and high bandwidth density communication will require passive athermal optical filters for WDM transceivers in Si-CMOS architecture. Two silicon-polymer composite structures, deposited using initiated chemical vapor deposition (iCVD), poly(perfluorodecyl acrylate) (pPFDA) and poly(perfluorodecyl acrylate-co-divinyl benzene) p(PFDA-co-DVB), are analyzed as candidates for thermal compensation. The addition of DVB to a fluorinated acrylate backbone reduces the C-F bond density, increases the density in the copolymer and thereby increases refractive index. The addition of DVB also increases the volume expansion coefficient of the copolymer, resulting in an increased thermo-optic (TO) coefficient for the copolymer system. The increased index and TO coefficient of the co-polymer gives improved bend loss, footprint and FSR performance for athermal silicon photonic circuits.
MIT Department
MIT Materials Research Laboratory
Massachusetts Institute of Technology. Department of Chemical Engineering
Massachusetts Institute of Technology. Department of Materials Science and Engineering
Massachusetts Institute of Technology. Microphotonics Center
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Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use.
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DOI of Published Version
https://doi.org/10.1364/OE.20.020808
