Intermode Breather Solitons in Optical Microresonators

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The concept of soliton gas was introduced in 1971 by Zakharov as an infinite collection of weakly interacting solitons in the framework of Korteweg-de Vries (KdV) equation. In this theoretical construction of a diluted (rarefied) soliton gas, solitons with ...

Crystallization of amorphous layers has been demonstrated under various radically different laser-exposure conditions, including continuous wave (cw) and pulsed lasers. Here, we investigate the specific role of ionization in the crystallization of dielectr ...

Chip -scale optical frequency combs enable the generation of highly -coherent pulsed light at gigahertz-level repetition rates, with potential technological impact ranging from telecommunications to sensing and spectroscopy. In combination with techniques ...

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We demonstrate a figure-of-9 all-fiber thulium-doped laser (TDFL) that generates 560 fs long pulses at 1948 nm wavelength. In order to achieve self-starting passive mode-locking, we utilize an in-fiber Faraday rotator to induce a nonreciprocal phase shift. ...

Diode effects are of great interest for both fundamental physics and modern technologies. Electrical diode effects (nonreciprocal transport) have been observed in Weyl systems. Optical diode effects arising from the Weyl fermions have been theoretically co ...

Materials properties are strictly dependent on their microstructure. The internal symmetries and the disposition of the constituting atoms of a material, which depend on its crystallographic structure, greatly affect its response to mechanical, electromagn ...

We theoretically and experimentally investigate the formation of dissipative coherent structures in Kerr nonlinear optical microresonators, whose spectrum encompasses an integrated dispersion that exceeds the cavity free-spectral range. We are able to acce ...

In this thesis, the generation of microcombs under complex, non-trivial, and/or higher-order cavity conditions is explored, both in theory & simulation, and in practical experimentation. Pulse-driving of microresonators is investigated for the generation ...

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Chip-based, single-frequency and low phase-noise integrated photonic laser diodes emitting in the violet (412 nm) and blue (461 nm) regime are demonstrated. The GaN-based edge-emitting laser diodes were coupled to high-quality on-chip micro-resonators for ...

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We present a narrow-linewidth second-harmonic source based on a laser diode injection locked to an optically poled silicon nitride microresonator. The device is a compact, highly-coherent dual-wavelength source, with high conversion efficiency up to 280%/W ...

Integrated optics has shown itself very convenient for exploiting nonlinear processes as it results in high confinement factor, freedom of dispersion engineering and compactness. However, the choice of materials is crucial for the development of nonlinear ...

Ring resonators have proven to be extremely successful for generation of temporal dissipative Kerr solitons, but their dispersion engineering is limited. We present a photonic-crystal Fabry-Perot resonator with record-high quality factors in gallium phosph ...

Early works(1) and recent advances in thin-film lithium niobate (LiNbO3) on insulator have enabled low-loss photonic integrated circuits(2,3), modulators with improved half-wave voltage(4,5), electro-optic frequency combs(6) and on-chip electro-optic devic ...

Combining optical gain in direct-bandgap III-V materials with tunable optical feedback offered by advanced photonic integrated circuits is key to chip-scale external-cavity lasers (ECL), offering wideband tunability along with low optical linewidths. Exter ...

Over the last decades, the progress made in the generation of laser pulses shorter than a picosecond (10^-12 s) has allowed us to reach extreme optical power intensities exceeding 10^15 W cm^-2. This tremendous power has triggered an abundance of original ...

Intermode Breather Solitons in Optical Microresonators

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Soliton gas: Theory, numerics, and experiments

Influence of ionization and cumulative effects on laser-induced crystallization in multilayer dielectrics

Dissipative Kerr soliton generation at 2μm in a silicon nitride microresonator

Laser-based manufacturing of freeform glass micro-optics through topological transformation

Femtosecond-laser direct-write photoconductive patterns on tellurite glass

Wavelength-stabilized figure-of-9 thulium-doped all-fiber laser emitting 560 fs pulses

Nonlinear optical diode effect in a magnetic Weyl semimetal

On the interaction of femtosecond laser pulses with layered dielectric materials

Dissipative Solitons and Switching Waves in Dispersion-Modulated Kerr Cavities

Generalised Kerr Microcomb Physics in Synchronously Driven Systems

Cavitation induced by pulsed and continuous-wave fiber lasers in confinement

Linear and nonlinear applications of miniaturized silicon nitride microresonators

Single-frequency violet and blue laser emission from AlGaInN photonic integrated circuit chips

All-glass miniature GHz repetition rate femtosecond laser cavity

Self-injection Locked Second-Harmonic Generation in Optically Poled Silicon Nitride Microresonators

Hybrid lithium niobate-on-silicon nitride platform for mid-IR supercontinuum generation

Soliton Generation in a Gallium Phosphide Photonic-Crystal Fabry-Perot Microresonator

Ultrafast tunable lasers using lithium niobate integrated photonics

Sub-kHz-Linewidth External-Cavity Laser (ECL) With Si3N4 Resonator Used as a Tunable Pump for a Kerr Frequency Comb

In situ monitoring of femtosecond laser-induced modifications in dielectrics