147 citations · 450 across the 21 of their papers we have counts for
21 papers
An optical frequency shifter based on continuous-wave pump fields
Anica Hamer, Frank Vewinger, Michael H. Frosz +1
Practical implementations of quantum information networks require frequency conversion of individual photons. Approaches based on a molecular gas as the nonlinear medium cover a wi…
Frequency conversion in a hydrogen-filled hollow-core fiber: power scaling, background, and bandwidth
Anica Hamer, Frank Vewinger, Michael H. Frosz +1
Large-area quantum networks based on optical fibers allow photons at near-infrared wavelengths to travel with minimal loss. Quantum frequency conversion is a method to alter the wa…
Ultra-broadband UV/VIS spectroscopy enabled by resonant dispersive wave emission of a frequency comb
Adrian Kirchner, Alexander Eber, Lukas Fürst +4
We introduce a novel ultra-broadband ultraviolet and visible frequency comb light source covering more than 240 THz by resonant dispersive wave emission in a gas-filled hollow-core…
Frequency conversion in a hydrogen-filled hollow-core fiber using continuous-wave fields
Anica Hamer, Frank Vewinger, Thorsten Peters +2
In large-area quantum networks based on optical fibers, photons are the fundamental carriers of information as so-called flying qubits. They may also serve as the interconnect betw…
Protecting quantum modes in optical fibres
M. A. T. Butt, P. Roth, G. K. L. Wong +7
Polarization-preserving fibers maintain the two polarization states of an orthogonal basis. Quantum communication, however, requires sending at least two nonorthogonal states and t…
Low-noise supercontinuum generation in chiral all-normal dispersion photonic crystal fibers
Markus Lippl, Michael H. Frosz, Nicolas Y. Joly
We present the advantages of supercontinuum generation in chiral, therefore circularly birefringent, all-normal dispersion fibers. Due to the absence of nonlinear power transfer be…
Temporal self-compression and self-frequency shift of sub-microjoule pulses at 8 MHz repetition rate
Francesco Tani, Jacob Lampen, Martin Butryn +4
We combine soliton dynamics in gas-filled hollow-core photonic crystal fibers with a state-of-the-art fiber laser to realize a turn-key system producing few-fs pulses at 8 MHz repe…
Optical vortex Brillouin laser
Xinglin Zeng, Philip St. J. Russell, Yang Chen +5
Optical vortices, which have been extensively studied over the last decades, offer an additional degree of freedom useful in many applications, such as optical tweezers and quantum…
Nonreciprocal vortex isolator by stimulated Brillouin scattering in chiral photonic crystal fibre
Xinglin Zeng, Philip St. J. Russell, Christian Wolff +3
Optical non-reciprocity, which breaks the symmetry between forward and backward propagating optical waves, has become vital in photonic systems and enables many key devices, such a…
High-brightness seven-octave carrier envelope phase-stable light source
Ugaitz Elu, Luke Maidment, Lenard Vamos +8
High-brightness sources of coherent and few-cycle-duration light waveforms with spectral coverage from the UV to the THz would offer unprecedented versatility and opportunities for…
Robust excitation and Raman conversion of guided vortices in chiral gas-filled photonic crystal fiber
S. Davtyan, Y. Chen, M. H. Frosz +2
The unique ring-shaped intensity patterns and helical phase fronts of optical vortices make them useful in many applications. Here we report for the first time efficient Raman freq…
Towards third-order parametric down-conversion in optical fibers
Andrea Cavanna, Jonas Hammer, Cameron Okoth +8
Optical fibers have been considered an optimal platform for third-order parametric down-conversion since they can potentially overcome the weak third-order nonlinearity by their lo…
Strong circular dichroism in twisted single-ring hollow-core photonic crystal fiber
P. Roth, Y. Chen, M. C. Günendi +6
We report a series of experimental, analytical and numerical studies demonstrating strong circular dichroism in helically twisted hollow-core single-ring photonic crystal fiber (SR…
Excitation of higher-order modes in optofluidic photonic crystal fiber
Andrei Ruskuc, Philipp Koehler, Marius A. Weber +4
Higher-order modes up to LP are controllably excited in water-filled kagomé- and bandgap-style hollow-core photonic crystal fibers (HC-PCF). A spatial light modulator is use…
Soliton-effect self-compressed single-cycle 9.6-W mid-IR pulses from a 21-W OPCPA at 3.25 μm and 160 kHz
Ugaitz Elu, Matthias Baudisch, Hugo Pires +6
We report a 21-W mid-IR OPCPA that generates 131-μJ and 97 fs (sub-9-cycle) pulses at 160 kHz repetition rate and at a centre wavelength of 3.25 μm. Pulse-to-pulse stability of the…
Continuously wavelength-tunable high harmonic generation via soliton dynamics
Francesco Tani, Michael H. Frosz, John C. Travers +1
We report generation of high harmonics in a gas-jet pumped by pulses self-compressed in a He-filled hollow-core photonic crystal fiber through the soliton effect. The gas-jet is pl…
Twist-tuned suppression of higher-order modes in single-ring hollow-core photonic crystal fibers
N. N. Edavalath, M. C. Günendi, R. Beravat +4
Optimum suppression of higher order modes in single-ring hollow-core photonic crystal fibers (SR-PCFs) occurs when the capillary-to-core diameter ratio d/D = 0.68. Here we report t…
Generation of Broadband Mid-IR and UV Light in Gas-Filled Single-Ring Hollow-Core PCF
Marco Cassataro, David Novoa, Mehmet C. Günendi +4
We report generation of an ultrafast supercontinuum extending into the mid- infrared in gas-filled single-ring hollow-core photonic crystal fiber (SR-PCF) pumped by 1.7 m light…
Analytical formulation for the bend-loss in single-ring hollow-core photonic crystal fibers
Michael H. Frosz, Paul Roth, Mehmet C. Günendi +1
Understanding bend-loss in single-ring hollow-core photonic crystal fibers is becoming of increasing importance as the fibers enter practical applications. While purely numerical a…
Broad-band robustly single-mode hollow-core PCF by resonant filtering of higher order modes
Mehmet C. Günendi, Patrick Uebel, Michael H. Frosz +1
We propose and theoretically analyse a novel hollow-core photonic crystal fibre (PCF) that is engineered so as to strongly suppress higher order modes, i.e., to provide robust LP$_…
Supercontinuum generation in the vacuum ultraviolet through dispersive-wave and soliton-plasma interaction in noble-gas-filled hollow-core photonic crystal fiber
Alexey Ermolov, Ka Fai Mak, Michael H. Frosz +2
We report on the generation of a three-octave-wide supercontinuum extending from the vacuum ultraviolet (VUV) to the near-infrared, spanning at least 113 to 1000 nm (i.e., 11 to 1.…