552 citations · 4.2k across the 46 of their papers we have counts for
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Noise in supercontinuum generated using PM and non-PM tellurite glass all-normal dispersion fibers
Shreesha Rao D. S., Tanvi Karpate, Amar Nath Ghosh +8
Intensity fluctuations in supercontinuum generation are studied in polarization-maintaining (PM) and non-PM all-normal dispersion tellurite photonic crystal fibers. Dispersive Four…
High resolution mid-infrared optical coherence tomography with kHz line rate
Niels M. Israelsen, Peter John Rodrigo, Christian R. Petersen +5
We report on Mid-infrared (MIR) OCT at 4 m based on collinear sum-frequency upconversion and promote the A-scan scan rate to 3 kHz. We demonstrate the increased imaging speed fo…
Multi-wavelength high energy gas-filled fiber Raman laser spanning from 1.53 um to 2.4 um
Abubakar I. Adamu, Yazhou Wang, MD. Selim Habib +5
In this work, we present a high pulse energy multi-wavelength Raman laser spanning from 1.53 um up to 2.4 um by employing the cascaded rotational stimulated Raman scattering (SRS)…
Noise performance and long-term stability of near- and mid-IR gas-filled fiber Raman lasers
Yazhou Wang, Abubakar Isa Adamu, Manoj Kumar Dasa +5
In this letter, the characteristics of noise and long-term stability of near- and mid-infrared (near-IR and mid-IR) gas-filled fiber Raman lasers have been investigated for the fir…
Shot-noise limited, supercontinuum based optical coherence tomography
Shreesha Rao D. S., Mikkel Jensen, Lars Grüner-Nielsen +8
We present the first demonstration of shot-noise limited supercontinuum-based spectral domain optical coherence tomography (SD-OCT) with axial resolution of 5.9 m at a center wa…
Cross-Phase Modulation Instability in PM ANDi Fiber-Based Supercontinuum Generation
Etienne Genier, Amar N. Ghosh, Swetha Bobba +5
We demonstrate broadband supercontinuum generation in an all-normal dispersion polarization-maintaining photonic crystal fiber and we report the observation of a cross-phase modula…
Delocalized SPM rogue waves in normal dispersion cascaded supercontinuum generation
Rasmus Eilkœr Hansen, Rasmus Dybbro Engelsholm, Christian Rosenberg Petersen +1
In the numerical modelling of cascaded mid-infrared (IR) supercontinuum generation (SCG) we have studied how an ensemble of spectrally and temporally distributed solitons from the…
Nanoimprinting and Tapering of Chalcogenide Photonic Crystal Fibers for Cascaded Supercontinuum Generation
Christian R. Petersen, Mikkel B. Lotz, Getinet Woyessa +7
Improved long-wavelength transmission and supercontinuum (SC) generation is demonstrated by anti-reflective (AR) nanoimprinting and tapering of chalcogenide photonic crystal fibers…
Noise and spectral stability of deep-UV gas-filled fiber-based supercontinuum sources driven by ultrafast mid-IR pulses
Abubakar I. Adamu, Md. Selim Habib, J. Enrique Antonio Lopez +4
Deep-UV (DUV) supercontinuum (SC) sources based on gas-filled hollow-core fibers constitute perhaps the most viable solution towards ultrafast, compact, and tunable lasers in the U…
Hybrid photonic-crystal fiber
Christos Markos, John C. Travers, Amir Abdolvand +2
This article offers an extensive survey of results obtained using hybrid photonic crystal fibers (PCFs) which constitute one of the most active research fields in contemporary fibe…
Directional supercontinuum generation: the role of the soliton
Simon Christensen, Shreesha Rao D. S., Ole Bang +1
In this paper we numerically study supercontinuum generation by pumping a silicon nitride waveguide, with two zero-dispersion wavelengths, with femtosecond pulses. The waveguide di…
Ultra-low-noise supercontinuum generation with a flat near-zero normal dispersion fiber
Shreesha Rao D. S., Rasmus D. Engelsholm, Iván B. Gonzalo +5
A pure silica photonic crystal fiber with a group velocity dispersion () of 4 ps/km at 1.55 m and less than 7 ps/km from 1.32 m to the zero dispersion wavelength…
Real-time High-Resolution Mid-infrared Optical Coherence Tomography
Niels M. Israelsen, Christian R. Petersen, Ajanta Barh +7
The potential for improving the penetration depth of optical coherence tomography systems by using increasingly longer wavelength light sources has been known since the inception o…
Deep-UV to mid-IR supercontinuum generation driven by mid-IR ultrashort pulses in a gas-filled fiber
Abubakar I. Adamu, Md. Selim Habib, Christian R. Petersen +6
Supercontinuum (SC) generation based on ultrashort pulse compression constitutes one of the most promising technologies towards an ultra-wide bandwidth, high-brightness and spatial…
All-depth dispersion cancellation in spectral domain optical coherence tomography using numerical intensity correlations
Mikkel Jensen, Niels Møller Israelsen, Michael Maria +3
In ultra-high resolution (UHR-) optical coherence tomography (OCT) group velocity dispersion (GVD) must be corrected for in order to approach the theoretical resolution limit. One…
High pulse energy supercontinuum laser for spectroscopic photoacoustic imaging of lipids in the 1650-1850 nm window
Manoj Kumar Dasa, Christos Markos, Christian Rosenberg Peteresen +1
Detection and identification of lipids are highly coveted for the interrogation of chronic diseases such as atherosclerosis and myocardial infarction. Intravascular photoacoustic i…
Multiple soliton compression stages from competing plasma nonlinearities in mid-IR gas-filled hollow-core fibers
Md. Selim Habib, Christos Markos, Ole Bang +1
We investigate numerically soliton-plasma interaction in a noble-gas-filled silica hollow-core anti-resonant fiber pumped in the mid-IR at 3.0 μm. We observe multiple soliton self-…
Limits to compression with cascaded quadratic soliton compressors
M. Bache, O. Bang, W. Krolikowski +2
We study cascaded quadratic soliton compressors and address the physical mechanisms that limit the compression. A nonlocal model is derived, and the nonlocal response is shown to h…
Highly sensitive refractometer with photonic crystal fiber long-period grating
Lars Rindorf, Ole Bang
We present highly sensitive refractometers based on a long-period grating in a large mode area PCF. The maximum sensitivity is 1500 nm/RIU at a refractive index of 1.33, the highes…
Sensitivity of photonic crystal fiber grating sensors: biosensing, refractive index, strain, and temperature sensing
Lars Rindorf, Ole Bang
We study the sensitivity of fiber grating sensors in the applications of strain, temperature, internal label-free biosensing, and internal refractive index sensing. It is shown tha…
Nonlocal explanation of stationary and nonstationary regimes in cascaded soliton pulse compression
M. Bache, O. Bang, J. Moses +1
We study soliton pulse compression in materials with cascaded quadratic nonlinearities, and show that the group-velocity mismatch creates two different temporally nonlocal regimes.…
Chromatic dispersion of liquid crystal infiltrated capillary tubes and photonic crystal fibers
Per Dalgaard Rasmussen, Jesper Laegsgaard, Ole Bang
We consider chromatic dispersion of capillary tubes and photonic crystal fibers infiltrated with liquid crystals. A perturbative scheme for inclusion of material dispersion of both…
Observation of attraction between dark solitons
Alexander Dreischuh, Dragomir N. Neshev, Dan E. Petersen +2
We demonstrate a dramatic change in the interaction forces between dark solitons in nonlocal nonlinear media. We present what we believe is the first experimental evidence of attra…
The complete modulational instability gain spectrum of nonlinear QPM gratings
J. F. Corney, Ole Bang
We consider plane waves propagating in quadratic nonlinear slab waveguides with nonlinear quasi-phase-matching gratings. We predict analytically and verify numerically the complete…