Results 21 to 30 of about 12,641 (308)

Ultrashort-pulse, terawatt, long-wave infrared lasers based on high-pressure CO2 amplifiers [PDF]

open access: yesEPJ Web of Conferences, 2021
We discuss the state of the art, the ongoing research and development, and the potential for achieving a supra-terawatt peak power in few-cycle pulses at a long-wave infrared wavelength with a laser system based on high-pressure, mixed-isotope CO2 ...
Polyanskiy Mikhail N.   +4 more
doaj   +1 more source

Narrow-Linewidth 2 μm All-Fiber Laser Amplifier with a Highly Stable and Precisely Tunable Wavelength for Gas Molecule Absorption in Photonic Crystal Hollow-Core Fibers

open access: yesMolecules, 2021
In recent years, mid-infrared fiber lasers based on gas-filled photonic crystal hollow-core fibers (HCFs) have attracted enormous attention. They provide a potential method for the generation of high-power mid-infrared emissions, particularly beyond 4 μm.
Wenxi Pei   +5 more
doaj   +1 more source

Optical fibres, lasers, and amplifiers [PDF]

open access: yesEndeavour, 1992
Initially, the only operation that could be performed in optical fibre communication was transmitting optical information from one point to another, necessitating complex auxiliary electronic circuitry. In recent years, however, a range of fibre components has been developed which promise to become as ubiquitous and indispensable as the transistor is ...
openaire   +2 more sources

Wavelength Scaling of Laser Wakefield Acceleration for the EuPRAXIA Design Point

open access: yesInstruments, 2019
Scaling the particle beam luminosity from laser wakefield accelerators to meet the needs of the physics community requires a significant, thousand-fold increase in the average power of the driving lasers.
Craig W. Siders   +7 more
doaj   +1 more source

Ultrafast Fiber Technologies for Compact Laser Wake Field in Medical Application

open access: yesPhotonics, 2022
Technologies, performances and maturity of ultrafast fiber lasers and fiber delivery of ultrafast pulses are discussed for the medical deployment of laser-wake-field acceleration (LWFA).
Weijian Sha   +2 more
doaj   +1 more source

Polarization resolved four-wave-mixing-based measurement in bulk material semiconductor optical amplifier [PDF]

open access: yes, 2006
The anticipated growth in demand for bandwidth leads to the development of all-optical signal processing techniques at ever increasing data rates. One possible candidate to achieve the required performance is the semiconductor optical amplifier (SOA). It
S. Philippe   +9 more
core   +1 more source

Thermal management in quasi-waveguide amplifiers based on Herriott cells [PDF]

open access: yesEPJ Web of Conferences
We present a new geometry for laser amplifiers with bulk laser gain media based on the quasi-waveguide property of Herriott cells. A proof-of-principle experiment and numerical simulations of the heat equation indicate a potential advantage in terms of ...
Meyer Johann Gabriel   +2 more
doaj   +1 more source

Optimization and Demonstration of Direct LD Pumped High-Power Fiber Lasers to Balance SRS and TMI Effects

open access: yesPhotonics, 2023
Up to now, transverse mode instability (TMI) and stimulated Raman scattering (SRS) have become the main factors limiting the power scaling of conventional ytterbium-doped fiber laser. Many technologies are proposed to suppress the SRS or TMI individually,
Lingfa Zeng   +11 more
doaj   +1 more source

Development of a two arm, high energy, high power laser for plasma research in India

open access: yesEPJ Web of Conferences, 2013
We report here work done towards development of a two arm, high energy, high power Nd:phosphate glass laser system. One arm of the laser is proposed to be operated in a long pulse (∼1.5ns pulse duration) with an energy of ∼400 J.
Joshi A.S.   +10 more
doaj   +1 more source

Tapered Multicore Fiber for High-Power Laser Amplifiers

open access: yesIEEE Photonics Journal, 2022
The problem of coherent amplification of the out-of-phase mode in tapered multicore fibers with cores arranged in a ring and in a square lattice is studied theoretically.
A. V. Andrianov   +4 more
doaj   +1 more source

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