Concept

Optical transistor

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Dynamics of soliton self-injection locking in optical microresonators

Tobias Kippenberg, Andrey Voloshin, Junqiu Liu, Wenle Weng

Soliton microcombs constitute chip-scale optical frequency combs, and have the potential to impact a myriad of applications from frequency synthesis and telecommunications to astronomy. The demonstration of soliton formation via self-injection locking of t ...

NATURE RESEARCH2021

Novel Insights into Thin Film Instabilities: From Fundamentals to Metamaterial Applications

Louis Marie Philippe Martin-Monier

The advent of metamaterials, e.g. artificially structured materials with physical properties significantly distinct from their bulk counterparts, has ushered in new perspectives in materials science and photonics, and constitutes today a new research front ...

EPFL2021

III-nitride photonic cavities

Nicolas Grandjean, Raphaël Butté

Owing to their wide direct bandgap tenability, III-nitride (III-N) compound semiconductors have been proven instrumental in the development of blue light-emitting diodes that led to the so-called solid-state lighting revolution and blue laser diodes that a ...

WALTER DE GRUYTER GMBH2020

Brillouin scattering in gas-filled hollow-core fibres

Flavien Gyger

Edward E. Hagenlocker and William G. Rado demonstrated Brillouin interaction in gas for the first time in 1965, right after the very first demonstrations of stimulated Brillouin scattering in solid materials. In their experiment, they used a megawatt pulse ...

EPFL2020

Heteronuclear soliton molecules in optical microresonators

Tobias Kippenberg, Erwan Guillaume Albert Lucas, Wenle Weng, Tobias Herr

Optical soliton molecules are bound states of solitons that arise from the balance between attractive and repulsive effects. Having been observed in systems ranging from optical fibres to mode-locked lasers, they provide insights into the fundamental inter ...

2020

Silicon Nitride Integrated Nonlinear Photonics

Junqiu Liu

Recently, microresonator-based dissipative Kerr soliton frequency combs ("soliton microcomb") have emerged as miniaturized optical frequency combs. So far, soliton microcombs have been realized in many CMOS-compatible material platforms including silico ...

EPFL2020

Analog signal processing with topological metamaterials

Farzad Zangeneh Nejad

Originally discovered in condensed matter systems, topological insulators (TIs) have been ubiquitously extended to various fields of classical wave physics including photonics, phononics, acoustics, mechanics, and microwaves. In the bulk, like any other in ...

EPFL2020

Electrically driven source of time-energy entangled photons based on a self-pumped silicon microring resonator

Matteo Galli

Time-energy entangled photon pairs are fundamental resources for quantum communication protocols since they are robust against environmental fluctuations in optical fiber networks. Pair sources based on spontaneous four-wave mixing in silicon microring res ...

OPTICAL SOC AMER2020

Open loop control theory algorithms for high-speed 3D MEMS optical switches

There is a world-wide push to create the next-generation all-optical transmission and switching technologies for exascale data centers. In this paper we focus on the switching fabrics. Many different types of 2D architectures are being explored including M ...

2020

Optical coupling device

Tobias Kippenberg, Junqiu Liu, Miles Henry Anderson, John David Jost

The present invention concerns an optical coupling device including at least one supporting layer comprising a first support wall and a second support wall. The at least one supporting layer comprises at least one bridging waveguide for coupling electromag ...

2019