Athermal Operation of Silicon Waveguides: Spectral, Second Order and Footprint Dependencies
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Kimerling_Athermal Operation final manuscript after editions.pdf
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Author(s)
Raghunathan, Vivek
Ye, Winnie N.
Hu, Juejun
Izuhara, Tomoyuki
Michel, Jurgen
Kimerling, Lionel C.
Date Issued
August 2010
Journal
Optics Express
Publisher
Optical Society of America
Citation
Vivek Raghunathan, Winnie N. Ye, Juejun Hu, Tomoyuki Izuhara, Jurgen Michel, and Lionel Kimerling, "Athermal operation of Silicon waveguides: spectral, second order and footprint dependencies," Opt. Express 18, 17631-17639 (2010)
Version
Author's final manuscript
Abstract
We report the design criteria and performance of Si ring
resonators for passive athermal applications in wavelength division
multiplexing (WDM). The waveguide design rules address i) positivenegative
thermo-optic (TO) composite structures, ii) resonant wavelength
dependent geometry to achieve constant confinement factor ( Γ ), and iii)
observation of small residual second order effects. We develop exact design
requirements for a temperature dependent resonant wavelength shift
(TDWS) of 0 pm/K and present prototype TDWS performance of 0.5pm/K.
We evaluate the materials selection tradeoffs between high-index contrast
(HIC) and low-index contrast (LIC) systems and show, remarkably, that
FSR and footprint become comparable under the constraint of athermal
design.
Subjects
Integrated Optics
MIT Department
Massachusetts Institute of Technology. Materials Processing Center
Massachusetts Institute of Technology. Department of Materials Science and Engineering
Massachusetts Institute of Technology. Microphotonics Center
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Attribution-Noncommercial-Share Alike 3.0 Unported
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DOI of Published Version
https://doi.org/10.1364/OE.18.017631
