127 citations · 741 across the 48 of their papers we have counts for
28 papers · 1 filter
Multi-pulse accumulation of gas molecular coherence enables gigahertz ultrafast frequency conversion
Yazhou Wang, Marcello Meneghetti, Ian Davidson +8
Frequency conversion of ultrafast lasers is fundamentally constrained by the trade-off between pulse energy and repetition rate. Here, we demonstrate a frequency conversion mechani…
Highly-efficient perturbative Raman shifting by engineering the nonlinear temporal response
Yi-Hao Chen, Wenchao Wang, Shaodong Hou +4
Raman scattering underlies a broad range of spectroscopic and light-generation techniques, yet its conventional description, based on the Raman gain spectrum, accurately describes…
Wavelength-Dependent Evolution of Full-Field Transfer Matrices in Photonic Lanterns
Caleb Dobias, Miguel Römer, Swati Bhargava +10
A fiber-based photonic lantern can couple an array of single-mode optical fibers to the guided modes of a multimode fiber, with the mapping between the single-mode fibers and guide…
Tunable, high pulse energy and narrow linewidth gas-filled fiber laser across near- and mid-infrared
Yazhou Wang, Marcello Meneghetti, Manoj K. Dasa +9
Wavelength widely tunable infrared fiber lasers that simultaneously deliver high pulse energies with narrow linewidths are critical for applications ranging from spectroscopy to no…
Efficient, broadly-tunable source of megawatt pulses for multiphoton microscopy based on self-phase modulation in argon-filled hollow-core fiber
Yishai Eisenberg, Wenchao Wang, Shitong Zhao +13
An exciting recent development for deep-tissue imaging with cellular resolution is three-photon fluorescence microscopy (3PM) with excitation at long wavelengths (1300 and 1700 nm)…
Photoacoustic methane detection assisted by a gas-filled anti-resonant hollow-core fiber laser
Cuiling Zhang, Jose Enrique Antonio-Lopez, Rodrigo Amezcua-Correa +2
Photoacoustic spectroscopys (PAS)-based methane (CH4) detectors have garnered significant attention with various developed systems using near-infrared (NIR) laser sources, which re…
Spatiotemporal Control of Ultrafast Pulses in Multimode Optical Fibers
Daniel Cruz-Delgado, J. Enrique Antonio-Lopez, Armando Perez-Leija +5
Multimode optical fibers represent the ideal platform for transferring multidimensional light states. However, dispersion degrades the correlations between the light's degrees of f…
Compact omnidirectional multicore fiber-based vector bending sensor
Josu Amorebieta, Angel Ortega-Gomez, Gaizka Durana +6
We propose and demonstrate a compact and simple vector bending sensor capable of distinguishing any direction and amplitude with high accuracy. The sensor consists of a short segme…
Sensitivity-optimized strongly coupled multicore fiber-based thermometer
Josu Amorebieta, Ángel Ortega-Gómez, Rubén Fernández +6
In this paper, we report on a multicore fiber-based (MCF) temperature sensor that operates in a wide thermal range and that is robustly packaged to withstand harsh environments. To…
Composed multicore fiber structure for direction-sensitive curvature monitoring
Joel Villatoro, Josu Amorebieta, Ángel Ortega-Gómez +4
The present work deals with a curvature sensor that consists of two segments of asymmetric multicore fiber (MCF) fusion spliced with standard single mode fiber (SMF). The MCF compr…
Highly sensitive multicore fiber accelerometer for low frequency vibration sensing
Josu Amorebieta, Ángel Ortega-Gómez, Gaizka Durana +6
We report on a compact, highly sensitive all-fiber accelerometer suitable for low frequency and low amplitude vibration sensing. The sensing elements in the device are two short se…
Accurate Loss Prediction of Realistic Hollow-core Anti-resonant Fibers Using Machine Learning
Yordanos Jewani, Michael Petry, Rei Sanchez-Arias +2
Hollow-core anti-resonant fibers (HC-ARFs) have proven to be an indispensable platform for various emerging applications due to their unique and extraordinary optical properties. H…
High energy and narrow linewidth N2-filled hollow-core fiber laser at 1.4 μm
Lujun Hong, Cuiling Zhang, Joseph Wahlen +4
In this work, we develop a high energy laser at 1.4 μm wavelength through the 1st order vibrational Raman Stokes generation in a nitrogen (N2) filled nodeless anti-resonant hollow…
Synthesizing gas-filled fiber Raman lines enables access to the molecular fingerprint region
Yazhou Wang, Lujun Hong, Cuiling Zhang +6
The synthesis of multiple narrow optical spectral lines, precisely and independently tuned across the near- to mid-infrared (IR) region, is a pivotal research area that enables sel…
Alignment of Free-Space Coupling of Few-Mode Fibre to Multi-Mode Fibre using Digital Holography
Menno van den Hout, Sjoerd van der Heide, Thomas Bradley +11
Off-axis digital holography is used to align a few-mode fiber to a multi-mode fiber in a free-space optical setup. Alignment based on power coupling measurements alone cannot guara…
Optical Field Characterization using Off-axis Digital Holography
Sjoerd van der Heide, Bram van Esch, Menno van den Hout +10
Angular resolved digital holography is presented as a technique for real-time characterization of the full optical field (amplitude and phase) of space-division multiplexing compon…
Efficient soliton self-frequency shift in hydrogen-filled hollow-core fiber
Yi-Hao Chen, Pavel Sidorenko, Enrique Antonio-Lopez +2
We report a study of soliton self-frequency shifting in hydrogen-filled hollow-core fiber. The combination of hydrogen and short 40-fs input pulses underlies clean and efficient ge…
CO2-based hollow-core fiber Raman laser with high-pulse energy at 1.95 um
Yazhou Wang, Olav ThorbjØrn Sandberg Schiess, Rodrigo Amezcua-Correa +1
In this letter, we present a high pulse energy Raman laser at 1946 nm wavelength directly pumped with a 1533 nm custom-made fiber laser. The Raman laser is based on the stimulated…
High Conversion Efficiency in Multi-mode Gas-filled Hollow-core Fiber
Md. Selim Habib, Christos Markos, Rodrigo Amezcua-Correa
In this letter, an energetic and highly efficient dispersive wave (DW) generation at 200 nm has been numerically demonstrated by selectively exciting LP-like mode in a 10 ba…
Impact of cladding elements on the loss performance of hollow-core anti-resonant fibers
Md. Selim Habib, Christos Markos, Rodrigo Amezcua-Correa
Understanding the impact of the cladding tube structure on the overall guiding performance is crucial for designing single-mode, wide-band, and ultra low-loss nested hollow-core an…
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…
Bright, high-repetition-rate water window soft X-ray source enabled by nonlinear pulse self-compression in an antiresonant hollow-core fibre
M. Gebhardt, T. Heuermann, R. Klas +10
Bright, coherent soft X-ray (SXR) radiation is essential to a variety of applications in fundamental research and life sciences. So far, high photon flux in this spectral region ca…
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…