Results 41 to 50 of about 173,725 (252)

Yb-doped large mode area fiber for beam quality improvement using local adiabatic tapers with reduced dopant diffusion.

Optics Express, 2018
A newly designed all-solid step-index Yb-doped aluminosilicate large mode area fiber for achieving high peak power at near diffraction limited beam quality with local adiabatic tapering is presented. The 45µm diameter fiber core and pump cladding consist
Yuanna Zhu, M. Leich, M. Lorenz, T. Eschrich, C. Aichele, J. Kobelke, H. Bartelt, M. Jäger   +7 more
semanticscholar   +1 more source

Large mode-area chalcogenide multicore fiber prepared by continuous two-stage extrusion

, 2021
A large mode-area (LMA) chalcogenide multicore fiber (MCF) with 13 hexagonally arranged cores has been designed and fabricated for mid-infrared (MIR) high power laser delivery.
Jing Xiao, Jinjing Wang, Tiesong Xu, Minghui Zhong, Xiaolin Liang, Jing-Yu Shen, Xunsi Wang, Zheming Zhao, Jun Wang, Guomei Wu, Zan Feng, Xiang Shen, Q. Nie, Rongping Wang   +13 more
semanticscholar   +1 more source

Characteristics of Collimators Based on the Large-Mode-Area CMCF for Coupling Laser Beam

Applied Sciences, 2021
A new collimator based on a homemade concentric multilayer-core fiber (CMCF) is proposed and experimentally demonstrated. This collimator was fabricated using a tail fiber with large mode area and single-mode operation.
Xuran Zhang, Xiao Liang, Zhenxu Bai, Shuo Liu, Zhaoxin Geng, Tianhe Yin   +5 more
doaj   +1 more source

Large mode area fiber lasers and their applications [PDF]

Advanced Solid State Lasers, 2000
The area of fiber lasers has undergone rapid developments in recent years. Gone are the days when fiber lasers were seen as something of an irrelevant curiosity, offering interesting performance features, but always with power levels or other performance limitations, that made them unsuitable for all but a few applications.
Richardson, D.J., Offerhaus, H.L., Broderick, N.G.R.   +2 more
openaire   +1 more source

Advanced fibre designs for high power laser beam delivery and generation [PDF]

, 2009
Microstructured optical fiber (MOF) technology provides a powerful means to develop fibers with unique and enabling properties with potential uses spanning a very wide range of applications.
Andrew Malinowski, Chen, Kang Kang, Franceso Poletti, Dejiao Lin, Loh, Wei, Lin, Dejiao, David J. Richardson, Dasgupta, Sonali, Richardson, David J., Neil Broderick, Marco Petrovich, Xian Feng, Wei Loh, Hayes, John, Shaif-ul Alam, Sonali Dasgupta, Feng, Xian, Kang Kang Chen, Malinowski, Andrew, John Hayes, Petrovich, Marco N., Broderick, Neil, Alam, Shaif-ul, Poletti, Francesco   +23 more
core   +1 more source

A Detailed Study of a Resonant-Assisted Segmented Cladding Fiber for Large Mode Area Applications

Photonics
In this work, we have proposed and optimized a large mode area segmented cladding fiber (SCF) with an unconventional low-index segment cladding. The low-refractive-index cladding proposed in this paper consists of three parts.
Minmin Xue, Hao Qin, Suwen Li, Yuqi Hao, Libo Yuan   +4 more
doaj   +1 more source

Large-mode-area multicore fibers in the single-moded regime

Optics Express, 2011
The effectively single-mode regime is analyzed for a class of large mode area multicore fibers. The performance tradeoff between bend loss, single-modedness, and mode area for these fibers is shown to be at best equivalent to step-index fiber.
openaire   +2 more sources

The effect of periodicity on the defect modes of large mode area microstructured fibers

Optics Express, 2008
It is well known that periodic variations in refractive index can be used to create guidance in an optical fiber via photonic bandgap effects. It has also been shown that periodic structure in index-guiding microstructured fibers can lead to the guidance of additional leaky higher-order modes due to bandgap effects.
Flanagan, Joanne C., Amezcua, R., Poletti, F., Hayes, J.R., Broderick, N.G.R., Richardson, D.J.   +5 more
openaire   +3 more sources

Multi-element fiber for space-division multiplexed optical communication system [PDF]

, 2014
This paper reviews a novel approach of implementing space-division multiplexing (SDM) based on Multi-element Fiber (MEF) technology. The MEF geometry provides for ultra-low crosstalk between the spatial channels while full compatibility with standard WDM
J. K. Sahu, D. J. Richardson, May-Smith, T.C., Petropoulos, P., Jain, S., Richardson, D.J., V. J. F. Rancano, T. C. May-Smith, P. Petropoulos, S. Jain, Rancaño, V.J.F., Sahu, J.K.   +11 more
core   +1 more source

All-Glass Single-Mode Leakage Channel Microstructured Optical Fibers with Large Mode Area and Low Bending Loss

Photonics, 2023
The paper presents the results of theoretical and experimental studies of all-glass leakage channel microstructured optical fibers (MOFs) with a large mode area and low bending losses. These MOFs contain two layers of fluorine-doped silica glass elements
Alexander Denisov, Vladislav Dvoyrin, Alexey Kosolapov, Mikhail Likhachev, Vladimir Velmiskin, Sergey Zhuravlev, Sergey Semjonov   +6 more
doaj   +1 more source