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Systematic Engineering of Waveguide-Resonator Coupling for Silicon Microring/Microdisk/Racetrack Resonators: Theory and Experiment

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TLDR
In this article, a waveguide-resonator coupling for optimum phase matching and field-overlap is proposed to achieve critical coupling and strong over-critical coupling for microring, micro racetrack and microdisk resonators on silicon-on-insulator (SOI) platform.
Abstract
A systematic engineering of waveguide-resonator coupling for optimum phase matching and field-overlap is proposed to achieve critical coupling and strong over-critical coupling for microring, micro racetrack and microdisk resonators on silicon-on-insulator (SOI) platform. The impact of the waveguide-resonator dimensions, their spacing and interaction length on the strength of the coupling are investigated. We show that by optimization of the dimension of the waveguide-resonator structure, the coupling strength can be engineered to be insensitive to fabrication errors. Based on our optimization techniques, critical coupling to low Q resonators (Q ~ 104) as well as ultra-high Q resonators (Q ~ 3.1 x 106) is experimentally demonstrated.

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Citations
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Journal ArticleDOI

Silicon microring resonators

TL;DR: An overview of the current state-of-the-art in silicon nanophotonic ring resonators is presented in this paper, where the basic theory of ring resonance is discussed and applied to the peculiarities of submicron silicon photonic wire waveguides: the small dimensions and tight bend radii, sensitivity to perturbations and the boundary conditions of the fabrication processes.
Journal ArticleDOI

Silicon photonics: from a microresonator perspective

TL;DR: This paper reviews from a microresonator perspective some of the latest progress in the field, summarizes design considerations in various applications and points out key challenges and potentials.
Journal ArticleDOI

Toward ultimate miniaturization of high Q silicon traveling-wave microresonators.

TL;DR: This paper investigates the scaling issues of silicon traveling-wave microresonators down to ultimate miniaturization levels in SOI platforms and demonstrates Q's as high as ~10(5) for resonators as small as 1.5 μm radius.
Journal ArticleDOI

Photon pair generation from compact silicon microring resonators using microwatt-level pump powers.

TL;DR: In this paper, the role played by important parameters such as the loss, group-velocity dispersion and the ring-waveguide coupling coefficient in finding the optimum operating point for silicon microring pair generation is discussed.
Journal ArticleDOI

Near-field characterization of a Bloch-surface-wave-based 2D disk resonator

TL;DR: The low loss characteristics of Bloch surface waves allowed us to reach a measured quality factor of 2×103 for a disk radius of 100 μm, and characterize the disk resonator by multi-heterodyne scanning near-field optical microscopy.
References
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Journal ArticleDOI

Micrometre-scale silicon electro-optic modulator

TL;DR: Electro-optic modulators are one of the most critical components in optoelectronic integration, and decreasing their size may enable novel chip architectures, and here a high-speed electro-optical modulator in compact silicon structures is experimentally demonstrated.
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A continuous-wave Raman silicon laser

TL;DR: The demonstration of a continuous-wave silicon Raman laser is demonstrated and it is shown that TPA-induced FCA in silicon can be significantly reduced by introducing a reverse-biased p-i-n diode embedded in a silicon waveguide.
Journal ArticleDOI

Universal relations for coupling of optical power between microresonators and dielectric waveguides

TL;DR: In this article, the fundamental working equations required to describe the associated power transfer are derived and the application of this geometry to a variety of optical phenomena including add/dropping of optical beams, add/drop filtering and optical power switching are discussed.
Journal ArticleDOI

Photonic Networks-on-Chip for Future Generations of Chip Multiprocessors

TL;DR: Results confirm the unique benefits for future generations of CMPs that can be achieved by bringing optics into the chip in the form of photonic NoCs, as well as a comparative power analysis of a photonic versus an electronic NoC.
Journal ArticleDOI

Coupling of modes analysis of resonant channel add-drop filters

TL;DR: In this article, the operation principle of resonant channel add-drop filters based on degenerate symmetric and antisymmetric standing-wave modes has been described using group theoretical arguments.
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