Optimized bifocal conic section mirrors for single-wavelength sized focusing DOI Open Access
Zhaoyang Li, Yanqi Liu,

Xiaoyang Guo

et al.

Published: Dec. 14, 2023

Compressing all the energy of a laser pulse into spatiotemporal focal cube edged by center wavelength will realize highest intensity an ultra-intense ultrashort facility, which is called as 3 regime or laser. Conic sections with two foci that can be used secondary focusing mirrors to reduce spot size from several wavelengths one wavelength. We investigate optimal conditions for ellipse and propose hyperbola - another important conic section also single-wavelength sized focusing, produce same reduced minimum spots mirrors.

Language: Английский

Joint Experimental and Computational Characterization of Sum-Frequency Generation between a Continuous Wave Laser and an Ultrafast Frequency Comb Laser for Tunable Laser Development DOI Creative Commons

Jie Zhan,

Nicholas D. Cooper, Melanie A. R. Reber

et al.

ACS Photonics, Journal Year: 2025, Volume and Issue: 12(2), P. 786 - 791

Published: Jan. 29, 2025

Ultrafast optical frequency combs allow for both high spectral and temporal resolution in molecular spectroscopy have become a powerful tool many areas of chemistry physics. lasers generated from ultrafast mode-locked often need to be converted other wavelengths. Commonly used wavelength conversions are parametric oscillators, which require an external cavity, supercontinuum generation combined with amplifiers. Whether commercial or home-built, these systems complex costly. Here, we investigate alternative, simple, easy-to-implement approach tunable comb enabled by new continuous-wave laser technology. Sum-frequency between Nd:YAG Yb:fiber femtosecond beta-barium borate (BBO) crystal is explored. The resulting sum-frequency beam pulsed the same repetition rate as source. SNLO simulation software simulate results provide benchmarks designing future achieve conversion tunability otherwise difficult-to-reach regions.

Language: Английский

Citations

0
Stable cascaded femtosecond optical parametric amplifiers in the NIR-I region at 50 MHz DOI

Xiaoxuan Zhu,

Jue Wang,

Xuechen Gao

et al.

Chinese Optics Letters, Journal Year: 2025, Volume and Issue: 23(1), P. 011902 - 011902

Published: Jan. 1, 2025

Language: Английский

Citations

0
Generation of 8-fs and 13-nJ pulse from a Yb-doped all-fiber-integrated nonlinear-pulse-compression system DOI Creative Commons

Tong Xia,

He Zhao, Shuyuan Zhu

et al.

Optics Express, Journal Year: 2024, Volume and Issue: 32(18), P. 32396 - 32396

Published: Aug. 13, 2024

In this study, we demonstrated a few-cycle pulse generation system delivering an 8-fs and 13-nJ pulse. The oscillator of is mode-locked fiber laser based on nonlinear amplifying loop mirror (NALM), which injected into the gain management (GMN) amplifier after pre-chirp by chirped Bragg grating (CFBG) passive fiber. Subsequently, hollow-core photonic bandgap (HC-PBG) employed to compensate for dispersion, achieving duration 49.8 fs with energy 51.8 nJ. Finally, integrate ultra-high numerical aperture (UHNA) at end HC-PBG spectral broadening. resulting range spans from 800 1400 nm. Dispersion compensation achieved using prism-pair, in further compression 8.2 fs, 13.1 nJ peak power 1.59 MW. With overall footprint <0.1 m 2 total volume <0.005 3 , delivers ultra-short pulses high while maintaining compactness stability, making it attractive many applications.

Language: Английский

Citations

2
Single-wavelength size focusing of ultra-intense ultrashort lasers with rotational hyperbolic mirrors DOI Creative Commons
Zhaoyang Li, Yanqi Liu,

Xiaoyang Guo

et al.

Advanced Photonics Nexus, Journal Year: 2024, Volume and Issue: 3(03)

Published: March 29, 2024

Compressing all the energy of a laser pulse into spatiotemporal focal cube edged by center wavelength will realize highest intensity an ultra-intense ultrashort laser, which is called λ3 regime or laser. Herein, we introduced rotational hyperbolic mirror—an important conic section mirror with two foci—that used as secondary focusing after parabolic to reduce spot size from several wavelengths single significantly increasing angular aperture. Compared ellipsoidal mirror, first high intensity, well some unwanted strong-field effects, avoided. The optimal condition this method presented and enhanced tight for femtosecond petawatt numerically simulated, can enhance focused intensities lasers physics.

Language: Английский

Citations

1
Broadly tunable femtosecond optical parametric amplifiers in the mid-infrared waveband based on cascaded noncollinear-collinear KTiOAsO4 crystals DOI

Chaolu Yuan,

Rui Zhang, Zhe Yu

et al.

Optics Communications, Journal Year: 2024, Volume and Issue: 569, P. 130805 - 130805

Published: June 15, 2024

Language: Английский

Citations

0
Sub-8-fs Pulses in the Visible to Near Infrared from a Degenerate Optical Parametric Amplifier DOI
Thomas Deckert, Aline Vanderhaegen, Daniele Brida

et al.

Published: Jan. 1, 2024

A single-stage optical parametric amplifier (OPA) operating at degeneracy delivers sub-8-fs pulses with excellent shot-to-shot stability. It complements the existing array of OPAs in visible to near infrared for advanced multidimensional spectroscopy.

Language: Английский

Citations

0
Optimized bifocal conic section mirrors for single-wavelength sized focusing DOI Open Access
Zhaoyang Li, Yanqi Liu,

Xiaoyang Guo

et al.

Published: Dec. 14, 2023

Compressing all the energy of a laser pulse into spatiotemporal focal cube edged by center wavelength will realize highest intensity an ultra-intense ultrashort facility, which is called as 3 regime or laser. Conic sections with two foci that can be used secondary focusing mirrors to reduce spot size from several wavelengths one wavelength. We investigate optimal conditions for ellipse and propose hyperbola - another important conic section also single-wavelength sized focusing, produce same reduced minimum spots mirrors.

Language: Английский

Citations

0
Optimized bifocal conic section mirrors for single-wavelength sized focusing DOI Open Access
Zhaoyang Li, Yanqi Liu,

Xiaoyang Guo

et al.

Published: Dec. 14, 2023

Compressing all the energy of a laser pulse into spatiotemporal focal cube edged by center wavelength will realize highest intensity an ultra-intense ultrashort facility, which is called as 3 regime or laser. Conic sections with two foci that can be used secondary focusing mirrors to reduce spot size from several wavelengths one wavelength. We investigate optimal conditions for ellipse and propose hyperbola - another important conic section also single-wavelength sized focusing, produce same reduced minimum spots mirrors.

Language: Английский

Citations

0