Publications de Tobias Herr | EPFL Graph Search

Simulating supercontinua from mixed and cascaded nonlinearities

Luis Guillermo Villanueva Torrijo, Tobias Herr, Victor Brasch, Thibault Voumard, Furkan Ayhan

Nonlinear optical frequency conversion is of fundamental importance in photonics and underpins countless of its applications: Sum- and difference-frequency generation in media with quadratic nonlinearity permits reaching otherwise inaccessible wavelength r ...

AIP Publishing2023

Photonic chip-based resonant supercontinuum via pulse-driven Kerr microresonator solitons

Tobias Kippenberg, Tobias Herr, Junqiu Liu, Miles Henry Anderson, Wenle Weng

Supercontinuum generation and soliton microcomb formation both represent key techniques for the formation of coherent, ultrabroad optical frequency combs, enabling the RF-to-optical link. Coherent supercontinuum generation typically relies on ultrashort pu ...

2021

Heteronuclear soliton molecules in optical microresonators

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

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 ...

Nature Research2020

Photonic chip-based resonant supercontinuum generation with intrinsic nonlinear filtering

Tobias Kippenberg, Tobias Herr, Junqiu Liu, Miles Henry Anderson, Wenle Weng

We demonstrate broadband soliton-based resonant supercontinuum generation in a chip-based microresonator. We show that the soliton possesses an intrinsic ability to filter RF noise transfer from the input pulses, which can be further improved with asynchro ...

IEEE2020

Resonant Supercontinuum Generation in Normal and Anomalous Dispersion

Tobias Kippenberg, Tobias Herr, Junqiu Liu, Miles Henry Anderson, Wenle Weng

We demonstrate broadband resonant supercontinuum generation based on stable bright soliton formation in Si3N4 microresonators with either anomalous or normal dispersion. The frequency combs have an electronically detectable repetition rate of 28 GHz, and s ...

IEEE2020

Resonant dissipative Kerr soliton supercontinuum in the normal dispersion regime

Tobias Kippenberg, Tobias Herr, Junqiu Liu, Miles Henry Anderson

We demonstrate broadband resonant supercontinuum generation in a Si3N4 microresonator with normal dispersion. Rectangular bright pulses are shown to form directly using synchronous pulse-driving, generating a 2,600-line comb at 28 GHz repetition rate. (C) ...

IEEE2020

A microphotonic astrocomb

Stefan Kundermann, Tobias Kippenberg, Tobias Herr, Michael Wolfgang Geiselmann, Junqiu Liu, Miles Henry Anderson

Earth-like planets, dark energy and variability of fundamental physical constants can be discovered by observing wavelength shifts in the optical spectra of astronomical objects(1-5). These wavelength shifts are so tiny that exquisitely accurate and precis ...

Nature Publishing Group2019

Broadband Efficient Soliton Microcombs in Pulse-Driven Photonic Microresonators

Sylvain Karlen, Tobias Kippenberg, Tobias Herr, Junqiu Liu, Miles Henry Anderson

Broadband single-soliton based frequency combs, with a detectable repetition rate of 28 GHz, are efficiently generated through pulse-driving of a chip-based Si3N4 microresonator. We observe an influence of the pulse-driving rate on the comb mode linewidth. ...

IEEE2019

Heteronuclear Soliton Molecules in Optical Microresonators

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

We enter the multi-stability regime of an optical microresonator to generate heteronuclear soliton molecules. Ultrafast electro-optical sampling reveals the bound structures of such soliton molecules, despite comprising solitons of dissimilar amplitudes, d ...

IEEE2019

Thermally stable access to microresonator solitons via slow pump modulation

Tobias Kippenberg, Tobias Herr, Victor Brasch, Junqiu Liu

Temporal dissipative Kerr solitons (DKSs) in microresonators provide ultra-short optical pulses and low-noise frequency combs with gigahertz to terahertz repetition rates. Owing to their unique properties, they have found application in fields, including o ...

OPTICAL SOC AMER2019

Multi-Terabit/s Transmission Using Chip-Scale Frequency Comb Sources

Tobias Kippenberg, Tobias Herr, Victor Brasch

Chip-scale frequency comb sources are likely to become key elements of future terabit/s optical transceivers. We investigate and demonstrate the viability of different comb generation schemes for transmission at multiterabit/s data rates. ...

Ieee2016

Silicon-organic hybrid (SOH) devices and their use in comb-based communication systems

Tobias Kippenberg, Tobias Herr, Victor Brasch

Advanced wavelength-division multiplexing (WDM) requires both efficient multi-wavelength light sources to generate optical carriers and highly scalable photonic-electronic interfaces to encode data on these carriers. In this paper, we give an overview on o ...

Ieee2016

Generating optical pulses via a soliton state of an optical microresonator

Tobias Kippenberg, Tobias Herr

A light pulse source (100), being adapted for generating repetitive optical pulses, comprises a continuous wave (cw) laser (10) being arranged for providing cw laser light, an optical microresonator (20) being made of a resonator material, which has a thir ...

2016

Counting the cycles of light using a self-referenced optical microresonator

Tobias Kippenberg, Tobias Herr, Martin Hubert Peter Pfeiffer, Victor Brasch, John David Jost, Caroline Marie Anne Lecaplain

Phase coherently linking optical-to-radio frequencies with femtosecond mode-locked laser frequency combs has enabled counting the cycles of light and is the basis of optical clocks, absolute frequency synthesis, tests of fundamental physics, and improved s ...

Optical Soc Amer2015

All-optical stabilization of a soliton frequency comb in a crystalline microresonator

Tobias Kippenberg, Tobias Herr, Martin Hubert Peter Pfeiffer, Victor Brasch, Erwan Guillaume Albert Lucas, John David Jost, Caroline Marie Anne Lecaplain

We demonstrate the all-optical stabilization of a low-noise temporal soliton based microresonator based optical frequency comb in a crystalline resonator via a new technique to control the repetition rate. This is accomplished by thermally heating the micr ...

Optical Society of America2015

Terabit/s communications using chip-scale frequency comb sources

Tobias Kippenberg, Tobias Herr, Victor Brasch

High-speed optical interconnects rely on advanced wavelength-division multiplexing (WDM) schemes. However, while photonic-electronic interfaces can be efficiently realized on silicon-on-insulator chips, dense integration of the necessary light sources stil ...

Spie-Int Soc Optical Engineering2015

Photonic chip-based optical frequency comb using soliton Cherenkov radiation

Tobias Kippenberg, Tobias Herr, Martin Hubert Peter Pfeiffer, Victor Brasch, Michael Wolfgang Geiselmann

Optical solitons are propagating pulses of light that retain their shape because nonlinearity and dispersion balance each other. In the presence of higher-order dispersion, optical solitons can emit dispersive waves via the process of soliton Cherenkov rad ...

American Association for the Advancement of Science2015

Mode Spectrum and Temporal Soliton Formation in Optical Microresonators

Tobias Kippenberg, Tobias Herr, Victor Brasch, John David Jost

The formation of temporal dissipative solitons in optical microresonators enables compact, high-repetition rate sources of ultrashort pulses as well as low noise, broadband optical frequency combs with smooth spectral envelopes. Here we study the influence ...

American Physical Society2014

Temporal solitons in optical microresonators

Tobias Kippenberg, Tobias Herr, Victor Brasch, John David Jost

Temporal dissipative solitons in a continuous-wave laser-driven nonlinear optical microresonator were observed. The solitons were generated spontaneously when the laser frequency was tuned through the effective zero detuning point of a high-Q resonance, wh ...

Nature Publishing Group2014

Coherent terabit communications with microresonator Kerr frequency combs

Tobias Kippenberg, Tobias Herr, Jingshi Li, Victor Brasch

Optical frequency combs have the potential to revolutionize terabit communications(1). The generation of Kerr combs in nonlinear microresonators(2) is particularly promising(3), enabling line spacings of tens of gigahertz. However, such combs may exhibit s ...

Nature Publishing Group2014