Temporal pulse quality of a Yb:YAG burst-mode laser post-compressed in a multi-pass cell DOI Creative Commons
Anne‐Lise Viotti, S. Ališauskas, Henrik Tünnermann

et al.

Optics Letters, Journal Year: 2021, Volume and Issue: 46(18), P. 4686 - 4686

Published: Aug. 11, 2021

Nonlinear pulse post-compression represents an efficient method for ultrashort, high-quality laser production. The temporal quality is, however, limited by amplitude and phase modulations intrinsic to post-compression. We here characterize in frequency time domain with high dynamic range individual post-compressed pulses within bursts comprising 100-kHz-rate trains. spectrally broaden 730 fs, 3.2 mJ from a Yb:YAG gas-filled multi-pass cell post-compress them 56 fs. exhibit nearly constant energy content of 78% the main peak over burst plateau, which is close theoretical limit. Our results demonstrate attractive characteristics, making lasers very applicable pump–probe spectroscopy at, e.g., free-electron or as drivers secondary conversion stages.

Language: Английский

Sub-10-fs pulse generation from 10 nJ Yb-fiber laser with cascaded nonlinear pulse compression DOI Creative Commons

Donguhn Kang,

Toshio Otsu,

Shuntaro Tani

et al.

Optics Express, Journal Year: 2024, Volume and Issue: 32(4), P. 5214 - 5214

Published: Jan. 23, 2024

We demonstrate cascaded nonlinear pulse compression of a Yb-doped fiber laser. The system is based on two stages with bare single-mode (SMF) and ultra-high NA (UHNA) fibers combined pairs chirped mirrors. 10 nJ, 110 fs input pulses are compressed down to 9.1 at 90 MHz, revealing broadband spectrum from 800 nm 1350 nm. This technique provides simple approach sub-10-fs compact lasers for variety applications.

Language: Английский

Citations

5
HISOL: High-energy soliton dynamics enable ultrafast far-ultraviolet laser sources DOI Creative Commons
Christian Brahms, John C. Travers

APL Photonics, Journal Year: 2024, Volume and Issue: 9(5)

Published: May 1, 2024

Ultrafast laser sources in the far ultraviolet (100–300 nm) have been subject of intense experimental efforts for several decades, driven primarily by requirements advanced experiments ultrafast science. Resonant dispersive wave emission from high-energy pulses undergoing soliton self-compression a gas-filled hollow capillary fiber promises to meet these first time, most importantly combining wide-ranging wavelength tuneability with generation extremely short pulses. In this Perspective, we give an overview approach far-ultraviolet sources, including its historical origin and underlying physical mechanism, state art current challenges, our view potential applications both within beyond

Language: Английский

Citations

5
High-power few-cycle THz generation at MHz repetition rates in an organic crystal DOI Creative Commons
Tobias Buchmann, E. J. R. Kelleher, Mojca Jazbinšek

et al.

APL Photonics, Journal Year: 2020, Volume and Issue: 5(10)

Published: Oct. 1, 2020

Ultrafast terahertz (THz) spectroscopy is a potent tool for studying the fundamental properties of matter. Limitations current THz sources, however, preclude technique being applied in certain advanced configurations or measurement of, e.g., strongly absorbing samples. In response to this problem, here we demonstrate generation 1.38 mW broadband radiation at 10 MHz repetition rate by combining highly efficient nonlinear organic crystal HMQ-TMS with ultrafast pump pulses generated using simple and stable external pulse compression high power, near-infrared (NIR) femtosecond ytterbium-doped fiber (Yb:fiber) laser. Utilizing spectral broadening large core, polarization maintaining photonic pair SF11 prisms, achieve tenfold Yb:fiber laser, yielding compressed 0.35 µJ full-width half maximum duration 22 fs, exerting peak power 13.8 MW MHz. through optical rectification NIR explored two distinct thicknesses crystal, leading conversion efficiency ∼5.5 · 10−4, an order magnitude higher than that achieved inorganic crystals, gallium phosphide, similar parameters. The focused beam has on-axis field strength greater 6.4 kV cm−1 unpurged atmosphere. We believe our moderately strong-field source well suited variety applications spectroscopy, particular THz-enabled scattering-type near-field, scanning tunneling where multi-MHz sources are required.

Language: Английский

Citations

34
Carrier-envelope phase stable few-cycle laser system delivering more than 100 W, 1 mJ, sub-2-cycle pulses DOI
Steffen Hädrich, Evgeny Shestaev,

Maxim Tschernajew

et al.

Optics Letters, Journal Year: 2022, Volume and Issue: 47(6), P. 1537 - 1537

Published: Feb. 17, 2022

Two-stage multipass-cell compression of a fiber-chirped-pulse amplifier system to the few-cycle regime is presented. The output delivers sub-2-cycle (5.8 fs), 107 W average power, 1.07 mJ pulses at 100 kHz centered 1030 nm with excellent spatial beam quality (M2 = 1.1, Strehl ratio S 0.98), pointing stability (2.3 µrad), and superior long-term power 0.1% STD over more than 8 hours. This combined carrier-envelope phase 360 mrad in frequency range from 10 Hz 50 kHz, i.e., measured on single-shot basis. unique will serve as an HR1 laser for Extreme Light Infrastructure Attosecond Pulse Source research facility enable high repetition rate isolated attosecond pulse generation.

Language: Английский

Citations

21
Generation and characterization of frequency tunable sub-15-fs pulses in a gas-filled hollow-core fiber pumped by a Yb:KGW laser DOI Creative Commons
Mohammed Sabbah, Federico Belli, Christian Brahms

et al.

Optics Letters, Journal Year: 2023, Volume and Issue: 48(9), P. 2277 - 2277

Published: March 23, 2023

We investigate soliton self-compression and photoionization effects in an argon-filled antiresonant hollow-core photonic crystal fiber pumped with a commercial Yb:KGW laser. Before the onset of photoionization, we demonstrate our 220 fs pump laser to 13 single compact stage. By using plasma driven self-frequency blueshift, also tunable source from 1030 ∼700 nm. fully characterize compressed pulses sum-frequency generation time-domain ptychography, experimentally revealing full time-frequency plasma-soliton dynamics for first time.

Language: Английский

Citations

12
Applications of Microstructured Optical Fibers in Ultrafast Optics: A Review DOI Creative Commons

Ziwen Tang,

Zihua Zheng,

Boyao Li

et al.

Photonics, Journal Year: 2024, Volume and Issue: 11(2), P. 151 - 151

Published: Feb. 5, 2024

With the development of laser technology, microstructured optical fibers (MOFs) have become an important part ultrafast optics, providing excellent platforms for pulse generation, amplification, and compression, promoting fiber systems to generate high power, energy, few-cycle duration pulses. MOFs extend spectrum vacuum ultraviolet (VUV) even extreme (EUV) regions based on dispersive wave emission harmonic as well mid-infrared region soliton self-frequency shift (SSFS), contributing compact low-cost light sources precision microscopy spectroscopy. In this paper, first several common types are introduced, then various applications in optics discussed, mainly focusing aspects scaling energy spectral bandwidth, finally possible prospects given.

Language: Английский

Citations

4
Spatially homogeneous few-cycle compression of Yb lasers via all-solid-state free-space soliton management DOI Creative Commons
Bingbing Zhu, Zongyuan Fu, Yudong Chen

et al.

Optics Express, Journal Year: 2021, Volume and Issue: 30(2), P. 2918 - 2918

Published: Dec. 24, 2021

The high power and variable repetition-rate of Yb femtosecond lasers makes them very attractive for ultrafast science. However, capturing sub-200 fs dynamics, efficient, high-fidelity high-stability pulse compression techniques are essential. Spectral broadening using an all-solid-state free-space geometry is particularly attractive, as it simple, robust low-cost. spatial temporal losses caused by spatio-spectral inhomogeneities have been a major challenge to date, due coupled space-time dynamics associated with unguided nonlinear propagation. In this work, we use compressors demonstrate 170 pulses at wavelength 1030nm from Yb:KGW laser ∼9.2 fs, highly spatially homogeneous mode. This achieved ensuring that the beam propagation in periodic layered Kerr media occurs soliton modes, confining phase through each material layer less than 1.0 rad. A remarkable homogeneity ∼0.87 can be realized, which yields efficiency >50% few-cycle compression. universality method demonstrated implementing high-quality under wide range conditions. spatiotemporal quality exceptional stability compressed further verified high-harmonic generation. Our predictive offers compact cost-effective solution few-cycle-pulse generation lasers, will enable broad applications science extreme optics.

Language: Английский

Citations

25
Optical solitons in hollow-core fibres DOI Creative Commons
John C. Travers

Optics Communications, Journal Year: 2023, Volume and Issue: 555, P. 130191 - 130191

Published: Dec. 10, 2023

I review the historical observation and subsequent research on optical soliton dynamics in gas-filled hollow-core fibres. include both large-core hollow capillary fibres, photonic-crystal or microstructured fibres with smaller cores, particular photonic bandgap antiresonant guiding discuss how guidance properties of these different fibre structures influence that can be obtained. The consider include: propagation at peak power levels ranging from megawatt to terawatt level, pulse energies sub-microjoule millijoule range; self-compression, leading sub-cycle sub-femtosecond duration; self-frequency shifting due Raman effect, photoionisation plasma formation; resonant dispersive wave emission, generation tuneable few-femtosecond pulses across vacuum deep ultraviolet, visible, near-infrared spectral regions.

Language: Английский

Citations

10
Invited commentary: hollow core glass fibre—the perfect pipe for light DOI Creative Commons
P. St. J. Russell

eLight, Journal Year: 2025, Volume and Issue: 5(1)

Published: April 2, 2025

Language: Английский

Citations

0
Few-cycle Yb-doped laser sources for attosecond science and strong-field physics DOI Creative Commons
Tran-Chau Truong,

Dipendra Khatri,

Christopher Lantigua

et al.

APL Photonics, Journal Year: 2025, Volume and Issue: 10(4)

Published: April 1, 2025

Yb-doped laser amplifiers have, in recent years, found applications attosecond science, driven largely by the opportunities associated with high-average-power and high-repetition-rate sources. In this Perspective article, we outline advances upcoming pulse generation measurements based on amplifiers.

Language: Английский

Citations

0