Journal ArticleDOI
Wavelength-Dependent Model of a Ring Resonator Sensor Excited by a Directional Coupler
Andre Delage,Dan-Xia Xu,Ross McKinnon,E. Post,Philip Waldron,Jean Lapointe,C. Storey,Adam Densmore,Siegfried Janz,Boris Lamontagne,Pavel Cheben,Jens H. Schmid +11 more
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TLDR
In this paper, the spectral characteristics of a ring resonator made of Si photonic wires are modeled using mode expansion of supermodes of the directional coupler, and the influence of the coupling coefficient, loss factor and waveguide dispersion on the spectral features are analyzed in detail.Abstract:
The spectral characteristics of a ring resonator made of Si photonic wires are modeled using mode expansion of supermodes of the directional coupler. The influence of the coupling coefficient, loss factor and waveguide dispersion on the spectral features are analyzed in detail. The model is then compared with the experimental data of a ring resonator designed for sensing purposes. The model that includes a wavelength dependence on coupling length reproduces the large variations of the envelope of the experimental spectrum, when coupling coefficient cover its full range from 0 to 1. Fitting parameters explain the details of the experimental spectrum and contribute to the sensor optimization, as well as illustrating general guidelines for ring resonator design.read more
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Journal ArticleDOI
Silicon Photonic Integration Platform—Have We Found the Sweet Spot?
Dan-Xia Xu,Jens H. Schmid,Graham T. Reed,Goran Z. Mashanovich,David J. Thomson,Milos Nedeljkovic,Xia Chen,Dries Van Thourhout,Shahram Keyvaninia,Shankar Kumar Selvaraja +9 more
TL;DR: In this article, the role of silicon device layer thickness in design optimization of various components that need to be integrated in a typical optical transceiver, including both passive ones for routing, wavelength selection, and light coupling as well as active ones such as monolithic modulators and on-chip lasers produced by hybrid integration.
Journal ArticleDOI
Extracting coupling and loss coefficients from a ring resonator
W R. McKinnon,Dan-Xia Xu,C. Storey,E. Post,Adam Densmore,André Delâge,Philip Waldron,Jens H. Schmid,Siegfried Janz +8 more
TL;DR: It is shown how coupling and loss coefficients of ring resonators can be disentangled based on how they vary with wavelength or device parameters.
Journal ArticleDOI
Silicon-on-insulator guided mode resonant grating for evanescent field molecular sensing
Jens H. Schmid,W. Sinclair,Jaime Lora García,Siegfried Janz,Jean Lapointe,Daniel Poitras,Y. Li,T. Mischki,Gregory P. Lopinski,Pavel Cheben,André Delâge,Adam Densmore,Philip Waldron,Dan-Xia Xu +13 more
TL;DR: Experimental and theoretical results of label-free molecular sensing using the transverse magnetic mode of a 0.22 mum thick silicon slab waveguide with a surface grating implemented in a guided mode resonance configuration show high sensitivity and good agreement with calculations based on rigorous coupled wave analysis.
Journal ArticleDOI
Temperature Effects on Silicon-on-Insulator (SOI) Racetrack Resonators: A Coupled Analytic and 2-D Finite Difference Approach
TL;DR: In this article, a detailed analysis of racetrack resonators on silicon on insulator substrates is presented, where both the temperature effects and the particularities of silicon nanophotonics are considered throughout the approach.
Journal ArticleDOI
Photonic wire biosensor microarray chip and instrumentation with application to serotyping of Escherichia coli isolates
Siegfried Janz,D.-X. Xu,Martin Vachon,N. Sabourin,Pavel Cheben,H. McIntosh,Heping Ding,Shurui Wang,Jens H. Schmid,André Delâge,Jean Lapointe,Adam Densmore,Rubin Ma,W. Sinclair,S.M. Logan,R. MacKenzie,Q. Y. Liu,D. Zhang,G. Lopinski,O. Mozenson,M. Gilmour,H. Tabor +21 more
TL;DR: A complete photonic wire molecular biosensor microarray chip architecture and supporting instrumentation is described, used to demonstrate a multiplexed assay for serotyping E. coli bacteria using serospecific polyclonal antibody probe molecules.
References
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Optical biosensor based on silicon-on-insulator microring cavities for specific protein binding detection - art. no. 64470K
TL;DR: In this paper, a micron sized integrated Silicon-on-Insulator optical biosensor based on a microring cavity was proposed for real time and sensitive measurements of protein dynamics, fast sample preparation and multiparameter detection.
Journal ArticleDOI
Efficient fiber-to-waveguide coupling through the vertical leakage from a microring.
TL;DR: A fiber-to-waveguide coupler is proposed to efficiently couple light from a single-mode fiber into a submicrometer semiconductor waveguide for integration with optoelectronic circuits.
Circuit-oriented modelling of ring-resonators
TL;DR: In this article, a circuit-based analysis of both a ring phase shifter and a single ring filter is proposed, taking into account the effects of imperfections in the directional couplers and polarization con- version in bent waveguides.
Journal ArticleDOI
Modeling of Tuning of Microresonator Filters by Perturbational Evaluation of Cavity Mode Phase Shifts
TL;DR: In this article, a perturbational expression for changes in the cavity propagation constants due to slight modifications of the cavity core refractive index is derived, which permits us to analytically calculate shifts in the spectral response of the 2-D resonators.
Progress in high index contrast integrated optics
Roel Baets,Peter Bienstman,Wim Bogaerts,Joost Brouckaert,Peter Debackere,Pieter Dumon,Gunther Roelkens,Stijn Scheerlinck,MK Meint Smit,Dirk Taillaert,Joris Van Campenhout,Frederik Van Laere,Dries Van Thourhout +12 more
TL;DR: The progress in this field is reviewed and the strong confinement achievable in high index contrast structures and devices allows for dramatic performance benefits and downscaling.