Results 1 to 10 of about 61,554 (157)

5.4 W, 9.4 ns Pulse Width, Long-Wave Infrared ZGP OPO Pumped by Ho:YAG MOPA System

open access: yesIEEE Photonics Journal, 2021
We demonstrated a narrow pulse-width long-wave infrared ZnGeP2 (ZGP) optical parametric oscillator (OPO) pumped by a 2.1 μm Ho:YAG master oscillator power-amplifier (MOPA).
Chuan-Peng Qian   +7 more
doaj   +1 more source

A High-Energy, Narrow-Pulse-Width, Long-Wave Infrared Laser Based on ZGP Crystal

open access: yesCrystals, 2021
In this paper, we present a high-energy, narrow pulse-width, long-wave infrared laser based on a ZnGeP2 (ZGP) optical parametric oscillator (OPO). The pump source is a 2.1 μm three -stage Ho:YAG master oscillator power-amplifier (MOPA).
Chuanpeng Qian   +7 more
doaj   +1 more source

Experimental study on the 500-W-level all-fiber amplifier operating near 980 nm

open access: yesResults in Physics, 2021
In this paper, a 500-W-level all-fiber amplifier operating near 980 nm is demonstrated firstly, to the best of our knowledge. The amplifier is fabricated with a 105/250-μm core/cladding-diameter double-cladding Yb-doped fiber (DCYF).
Maoni Chen   +6 more
doaj   +1 more source

Delivery of Nearly Diffraction-Limited Picosecond Laser Pulses in the Air-Filled Anti-Resonant Hollow-Core Fiber at 1 μm Wavelength

open access: yesPhotonics, 2023
We demonstrate the damage-free delivery of nearly diffraction-limited picosecond laser pulses at 1064 nm with a maximum peak power of 3.5 MW in a 5 m air-filled anti-resonant hollow-core fiber (AR-HCF).
Leben Liang   +6 more
doaj   +1 more source

Fabrication of Microchannels in a Nodeless Antiresonant Hollow-Core Fiber Using Femtosecond Laser Pulses

open access: yesSensors, 2021
In this work, we present femtosecond laser cutting of microchannels in a nodeless antiresonant hollow-core fiber (ARHCF). Due to its ability to guide light in an air core combined with exceptional light-guiding properties, an ARHCF with a relatively non ...
Paweł Kozioł   +9 more
doaj   +1 more source

Nonlinear chirped pulse amplification for a 100-W-class GHz femtosecond all-fiber laser system at 1.5 $\unicode{x3bc}$ m

open access: yesHigh Power Laser Science and Engineering, 2023
In this work, we present a high-power, high-repetition-rate, all-fiber femtosecond laser system operating at 1.5 $\unicode{x3bc}$ m. This all-fiber laser system can deliver femtosecond pulses at a fundamental repetition rate of 10.6 GHz with an ...
Yiheng Fan   +12 more
doaj   +1 more source

Heat Distribution in High Power Yb Doped Fiber Laser by Considering Photo-darkening Effect [PDF]

open access: yesAUT Journal of Modeling and Simulation, 2021
Several effects, such as optical nonlinear and thermal effects can change and reduce the output power of high-power Fiber Laser. In this paper, the photodarkening effect, as an additional loss factor in the high-power Fiber Laser s, was added in the rate
Maryam Karimi
doaj   +1 more source

Antiresonant Hollow-Core Fiber-Based Dual Gas Sensor for Detection of Methane and Carbon Dioxide in the Near- and Mid-Infrared Regions

open access: yesSensors, 2020
In this work, we present for the first time a laser-based dual gas sensor utilizing a silica-based Antiresonant Hollow-Core Fiber (ARHCF) operating in the Near- and Mid-Infrared spectral region.
Piotr Jaworski   +9 more
doaj   +1 more source

Fiber Coupled High Power Nd:YAG Laser for Nondestructive Laser Cleaning

open access: yesPhotonics, 2023
In this study, a fiber coupled high power side-pumped Nd:YAG laser system for laser cleaning is presented. Based on the two-rod structure and two stages amplifiers, the maximum average output power of 783 W with corresponding pulse energy of 52 mJ at 15 ...
Xiaolei Wang   +4 more
doaj   +1 more source

High Power Ytterbium-Doped Fiber Lasers Employing Longitudinal Vary Core Diameter Active Fibers

open access: yesPhotonics, 2023
Thanks to the advantage of balancing nonlinear effects and transverse mode instability, vary core diameter active fiber (VCAF) has been widely used in high power ytterbium-doped fiber lasers in recent years.
Lingfa Zeng   +11 more
doaj   +1 more source

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