6 citations · 31 across the 15 of their papers we have counts for
16 papers · 1 filter
Short mode-locked pulses from planarized Y-coupled THz lasers
Urban Senica, Tabea Bühler, Sara Cibella +4
Short THz pulses are highly attractive both for fundamental research and practical applications in this underdeveloped region of the electromagnetic spectrum. Typically, THz pulses…
Free-Running Ring Quantum Cascade Laser with 50 kHz Linewidth
Alexandre Parriaux, Ina Heckelmann, Mathieu Bertrand +3
We report on the noise characterization of a free-running ring quantum cascade laser resonator emitting a single frequency mode around 7.7 m. Using a gas cell filled with NO…
Metasurface-Enhanced Mid-Infrared Imaging Spectroscopy with Broadband Quantum Cascade Lasers
Ivan Sinev, Alessio Cargioli, Diego Piciocchi +3
Mid-infrared (mid-IR) spectroscopy offers unparalleled opportunities in sensing through chemically specific detection of molecular absorption fingerprints. Yet, its practical appli…
Fast and compact time-resolved spectroscopy enabled by Quantum Walk Combs
Ina Heckelmann, Davide Pinto, Uwe Schmitt +2
Optical frequency combs paved the way for fast and compact multi-component optical chemical analysis due to their broadband spectra. Dual-comb spectrometers embody this technology,…
Time-resolved spectroscopy of noise-driven collective states of light
Diego Piciocchi, Ina Heckelmann, Alexander Dikopoltsev +6
We study a collective liquid state of light in a fast-gain laser. Controlled temporal noise on the cavity modulation creates a fluctuating linear potential along the synthetic freq…
Multi-mode Deep Strong Coupling in a Multi Quantum Well Fabry-Perot Cavity
Lucy Hale, Johan Andberger, Ethan Koskas +4
We present multi-mode deep-strong coupling in a multi-quantum well (N=166) heterostructure. The heterostructure itself acts as a Fabry-Perot cavity, for which the even cavity modes…
On-chip pulse generation at 8 μm wavelength
Annabelle Bricout, Mathieu Bertrand, Philipp Täschler +15
The mid-infrared spectral region holds growing importance for applications such as gas sensing and spectroscopy. Although compact ultrashort pulse laser sources are essential to en…
Integrated thin film lithium niobate mid-infrared modulator
Pierre Didier, Prakhar Jain, Mathieu Bertrand +7
The mid-infrared spectral range holds great promise for applications such as molecular spectroscopy and telecommunications. Many key molecules exhibit strong absorption features in…
Ultrafast Non-Hermitian Skin Effect
Barbara Schneider, Alexander Dikopoltsev, Markus Bestler +5
Topological phases of matter commonly feature protected states at their boundaries. Transferring this protection to time-metamaterials is extremely challenging, as it requires the…
Spectral shaping of fast-gain frequency combs through phases in synthetic dimensions
Diego Piciocchi, Alexander Dikopoltsev, Ina Heckelmann +3
Optical frequency comb devices have unlocked new capabilities in telecommunications, sensing, and metrology. Yet, precise in situ control of the comb spectral envelope remains extr…
Non-resonant Optical Injection Locking in Quantum Cascade Laser Frequency Combs
Alexandre Parriaux, Kenichi N. Komagata, Mathieu Bertrand +4
Optical injection locking of the repetition frequency of a quantum cascade laser frequency comb is demonstrated using an intensity modulated near-infrared light at 1.55 m illumi…
Continuously tunable coherent pulse generation in semiconductor lasers
Urban Senica, Michael A. Schreiber, Paolo Micheletti +4
In a laser, the control of its spectral emission depends on the physical dimensions of the optical resonator, limiting it to a set of discrete cavity modes at specific frequencies.…
A Quantum Walk Comb Source at Telecommunication Wavelengths
Bahareh Marzban, Lucius Miller, Alexander Dikopoltsev +3
We demonstrate a quantum walk comb in synthetic frequency space formed by externally modulating a semiconductor optical amplifier operating in the telecommunication wavelength rang…
Shot-noise-limited emission from interband and quantum cascade lasers
Tecla Gabbrielli, Jacopo Pelini, Georg Marschick +12
The intensity noise of a laser source represents one of the key factors limiting the ultimate sensitivity in laser-based systems for sensing and telecommunication. For advanced app…
Coherence analysis of tightly locked mid-infrared quantum cascade laser frequency combs
Alexandre Parriaux, Kenichi N. Komagata, Mathieu Bertrand +3
Frequency combs are powerful tools for many applications and high performances are achieved by stabilizing these lasers. For operation in the mid-infrared, quantum cascade lasers (…
Impact of higher-order dispersion on frequency-modulated combs
Nikola Opačak, Barbara Schneider, Jérôme Faist +1
Frequency-modulated (FM) combs form spontaneously in free-running semiconductor lasers and possess a vast potential for spectroscopic applications. Despite recent progress in obtai…