Journal ArticleDOI
All-optical silicon modulators based on carrier injection by two-photon absorption
TLDR
In this article, the authors present a theoretical analysis of a silicon all-optical modulator based on free-carrier injection by two-photon absorption (TPA) in a highly light-confining structure.Abstract:
This paper presents a theoretical analysis of a silicon all-optical modulator based on free-carrier injection by two-photon absorption (TPA) in a highly light-confining structure. In spite of the weak optoelectronic properties of silicon, strong light confinement allows high modulation depths in very compact devices requiring low-energy pump pulses. This analysis is applied to 1-5 mum radius silicon ring resonators with the pump pulse coupled on-chip and including in the model the scattering loss due to sidewall roughness originating from the fabrication process. The calculations show that using this scheme, modulation depths greater than 80% can be achieved, with no more than 3 pJ of pump pulse energy, at speeds on the order of 10 GHzread more
Citations
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Journal ArticleDOI
Nonlinear optical phenomena in silicon waveguides: Modeling and applications
TL;DR: A unified theoretical platform that not only can be used for understanding the underlying physics but should also provide guidance toward new and useful applications is provided.
Journal ArticleDOI
Nonlinear optics in photonic nanowires
TL;DR: Photonic nanowires provide the maximal confinement of light for index guiding structures enabling large enhancement of nonlinear interactions and group-velocity dispersion engineering, which makes them ideally suited for many nonlinear optical applications including the generation of single-cycle pulses and optical processing with sub-mW powers.
Journal ArticleDOI
Engineering nonlinearities in nanoscale optical systems: physics and applications in dispersion-engineered silicon nanophotonic wires
Richard M. Osgood,Nicolae C. Panoiu,Jerry I. Dadap,Xiaoping Liu,Xiaogang Chen,I-Wei Hsieh,E. Dulkeith,William M. J. Green,Yurii A. Vlasov +8 more
TL;DR: The nonlinear optics of Si photonic wires are discussed in this paper, where the authors review the fundamental optical physics and emerging applications for these Si wires and discuss their potential for functional on-chip nano-nonlinear optical devices of just a few millimeters in length.
Journal ArticleDOI
Tunable silicon microring resonator with wide free spectral range
TL;DR: In this paper, the authors presented a silicon-on-insulator single ring resonator with a free spectral range equal to 47nm, which is the widest known value for this type of resonators.
Journal ArticleDOI
Ultrafast nonlinear all-optical processes in silicon-on-insulator waveguides
TL;DR: In this article, the authors present an overview of the progress made in recent years in the field of integrated silicon-on-insulator (SOI) waveguide photonics with a strong emphasis on third-order nonlinear optical processes.
References
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Journal ArticleDOI
Electrooptical effects in silicon
TL;DR: In this article, a numerical Kramers-Kronig analysis is used to predict the refractive index perturbations produced in crystalline silicon by applied electric fields or by charge carriers.
Journal ArticleDOI
Microring resonator channel dropping filters
TL;DR: In this article, a method of coupling of modes in time was proposed to simplify both the analysis and filter synthesis aspects of these devices, and the response of filters comprised of an arbitrarily large dumber of resonators may be written down by inspection, as a continued fraction.
Journal ArticleDOI
All-optical control of light on a silicon chip
TL;DR: The experimental demonstration of fast all-optical switching on silicon using highly light-confining structures to enhance the sensitivity of light to small changes in refractive index and confirm the recent theoretical prediction of efficient optical switching in silicon using resonant structures.
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.