168 citations · 524 across the 14 of their papers we have counts for
14 papers
A swept-source dual-comb spectrometer on a chip
Johannes Fuchsberger, Theodore P. Letsou, Paul Chevalier +4
Dual-comb spectroscopy (DCS) enables high-speed, high-resolution spectroscopy by down-converting optical spectra to the radio-frequency (RF) domain through the interference of two…
High-power quantum walk frequency combs
Theodore P. Letsou, Johannes Fuchsberger, Nikola Opačak +3
High-power, broadband frequency combs generated by semiconductor lasers have profound implications for on-chip spectroscopy. Here, we present a dry-etched racetrack quantum cascade…
Temporal solitons in active optical resonators
Dmitry Kazakov, Federico Capasso, Marco Piccardo
Solitons, as coherent structures that maintain their shape while traveling at constant velocity, are ubiquitous across various branches of physics, from fluid dynamics to quantum f…
Lasing on hybridized soliton frequency combs
Theodore P. Letsou, Dmitry Kazakov, Pawan Ratra +10
Coupling is an essential mechanism that drives complexity in natural systems, transforming single, non-interacting elements into intricate networks with rich physical properties. H…
Driven bright solitons on a mid-infrared laser chip
Dmitry Kazakov, Theodore P. Letsou, Marco Piccardo +13
Despite the ongoing progress in integrated optical frequency comb technology, compact sources of short bright pulses in the mid-infrared wavelength range from 3 μm to 12 μm so far…
Nozaki-Bekki optical solitons
Nikola Opačak, Dmitry Kazakov, Lorenzo L. Columbo +8
Recent years witnessed rapid progress of chip-scale integrated optical frequency comb sources. Among them, two classes are particularly significant -- semiconductor Fabry-Perót las…
Point singularity array with metasurfaces
Soon Wei Daniel Lim, Joon-Suh Park, Dmitry Kazakov +4
Phase singularities are loci of darkness surrounded by monochromatic light in a scalar field, with applications in optical trapping, super-resolution imaging, and structured light-…
Semiconductor ring laser frequency combs with active directional couplers
Dmitry Kazakov, Theodore P. Letsou, Maximilian Beiser +5
Rapid development of Fabry-Perot quantum cascade laser frequency combs has converted them from laboratory devices to key components of next-generation fast molecular spectrometers.…
Gigahertz free-space electro-optic modulators based on Mie resonances
Ileana-Cristina Benea-Chelmus, Sydney Mason, Maryna L. Meretska +5
Electro-optic modulators from non-linear materials are essential for sensing, metrology and telecommunications because they link the optical domain with the microwave dom…
Spectrally resolved linewidth enhancement factor of a semiconductor frequency comb
Nikola Opačak, Florian Pilat, Dmitry Kazakov +5
The linewidth enhancement factor (LEF) has recently moved into the spotlight of research on frequency comb generation in semiconductor lasers. Here we present a novel modulation ex…
Semiconductor ring laser frequency combs induced by phase turbulence
Marco Piccardo, Benedikt Schwarz, Dmitry Kazakov +10
Semiconductor ring lasers are miniaturized devices that operate on clockwise and counterclockwise modes. These modes are not coupled in the absence of intracavity reflectors, which…
Self-starting harmonic frequency comb generation in a quantum cascade laser
Dmitry Kazakov, Marco Piccardo, Yongrui Wang +7
Optical frequency combs establish a rigid phase-coherent link between microwave and optical domains and are emerging as high-precision tools in an increasing number of applications…
On-chip Dual-comb based on Quantum Cascade Laser Frequency Combs
Gustavo Villares, Johanna Wolf, Dmitry Kazakov +4
Dual-comb spectroscopy is emerging as one of the most appealing applications of mid-infrared frequency combs for high-resolution molecular spectroscopy, as it leverages on the uniq…
Dispersion engineering of Quantum Cascade Lasers frequency combs
Gustavo Villares, Sabine Riedi, Johanna Wolf +4
Quantum cascade lasers are compact sources capable of generating frequency combs. Yet key characteristics - such as optical bandwidth and power-per-mode distribution - have to be i…