Results 61 to 70 of about 7,683 (202)

A compact and robust diode laser system for atom interferometry on a sounding rocket

open access: yes, 2016
We present a diode laser system optimized for laser cooling and atom interferometry with ultra-cold rubidium atoms aboard sounding rockets as an important milestone towards space-borne quantum sensors.
Braxmaier, C.   +11 more
core   +1 more source

Generation of tuneable 589nm radiation as a Na guide star source using an optical parametric amplifier [PDF]

open access: yes, 2015
We describe a 5.5W 589nm source based on a passively modelocked Nd:YVO4 laser and a multi-stage Lithium Triborate optical parametric amplifier seeded by a tuneable semiconductor laser.
Duering, M   +2 more
core   +1 more source

A High-Power and Highly Efficient Semi-Conductor MOPA System for Lithium Atomic Physics

open access: yesApplied Sciences, 2019
A compact and highly efficient 670.8-nm semi-conductor master oscillator power amplifier (MOPA) system, with a unique optical design, is demonstrated.
Hao Wu   +5 more
doaj   +1 more source

Narrow Linewidth 49 W All Fiber Linearly Polarized Picosecond Laser Operating at 1016 nm

open access: yesIEEE Photonics Journal, 2022
An all fiber linearly polarized narrow linewidth pulsed fiber laser operating at 1016 nm is demonstrated in a master oscillator power amplification (MOPA) configuration.
Chao Zhang   +3 more
doaj   +1 more source

Durable Nonfluorinated Stochastically Hierarchical Superhydrophobic Interface for Intense Long‐Term Phase Change Cooling

open access: yesSmall Structures, Volume 6, Issue 11, November 2025.
A novel six‐step strategy is developed for fabrication of durable stochastically hierarchical superhydrophobic boiling interfaces. The engineered interfacial properties effectively mitigate the loss of superhydrophobicity that occurs on copper during long‐term boiling, overcoming a key barrier to practical deployment in advanced phase change cooling ...
Jure Berce   +4 more
wiley   +1 more source

Detailed comparison of injection-seeded and self-seeded performance of a 1060nm gain-switched Fabry-Perot laser diode

open access: yes, 2016
We investigate and compare the performance of a gain-switched picosecond Fabry-Perot laser diode operated at 1.06 µm under both injection- and self-seeded conditions.
Malinowski, A.   +3 more
core   +1 more source

Symmetrical Modular Optical Phased Array With Combined Spatial and Amplitude Modulation for Scalable Indoor Wireless Networks

open access: yesIEEE Open Journal of the Communications Society
Scalable optical wireless networks are crucial to address the demand for ultra-broadband wireless connectivity in future workspaces and living environments.
Kosala Herath   +3 more
doaj   +1 more source

Chiral Lasing Emission from a Simple Two‐Unit Supercell Metasurface

open access: yesLaser &Photonics Reviews, Volume 19, Issue 20, October 20, 2025.
Circularly polarized light (CPL) sources are vital for various applications, yet narrow‐linewidth chiral lasing with a high degree of circular polarization (DCP) remains challenging. This study demonstrates narrow‐linewidth chiral lasing using a two‐unit supercell metasurface. The in‐plane symmetry breaking induces spin splitting of the Γ0‐BIC into Γ±1
Di Xing   +5 more
wiley   +1 more source

Fibre lasers: the new wave in material processing

open access: yes, 2005
In the last few years, fibre lasers have established themselves as the preferred laser source in many applications. The combination of small size, maintenance-free operation, thermal and electrical efficiency combined with outstanding (diffraction ...
Parker, David, Payne, David N.
core   +1 more source

JOKARUS - Design of a compact optical iodine frequency reference for a sounding rocket mission [PDF]

open access: yes, 2017
We present the design of a compact absolute optical frequency reference for space applications based on hyperfine transitions in molecular iodine with a targeted fractional frequency instability of better than $3\cdot 10^{-14}$.
Bawamia, Ahmad   +11 more
core   +2 more sources

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