Results 51 to 60 of about 2,664,944 (200)

Modelling and Simulation of a Rectangular Large Mode Area Photonic Crystal Fiber [PDF]

EPJ Web of Conferences
This work presents a rectangular large core area (R-LCA) PCF with a cladding diameter of 125 µm, a pitch of 9 µm, and a hole diameter of 8 µm. The guided modes were obtained through numerical simulations using COMSOL Multiphysics.
Rúben Alves Mário, Silva Susana, Frazão Orlando   +2 more
doaj   +1 more source

Large-effective-area uncoupled few-mode multi-core fiber [PDF]

Optics Express, 2012
Characteristics of few-mode multi-core fiber (FM-MCF) were numerically analyzed and experimentally confirmed. The cores of FM-MCF were designed to support transmission of LP(01) and LP(11) modes from the point of bending loss of LP(11) and LP(21) modes. Inter-core crosstalk between LP(11) mode was calculated to determine core pitch of fibers.
Sasaki, Yusuke, Takenaga, Katsuhiro, Guan, Ning, Matsuo, Shoichiro, Saitoh, Kunimasa, Koshiba, Masanori   +5 more
openaire   +3 more sources

Birefringence analysis of multilayer leaky cladding optical fibre [PDF]

, 2010
We analyse a multilayer leaky cladding (MLC) fibre using the finite element method and study the effect of the MLC on the bending loss and birefringence of two types of structures: (i) a circular core large-mode-area structure and (ii) an elliptical ...
A Kumar, B Dussardier, Dussardier B Trzesien S Ude M Rastogi V Kumar A Monnom G Pal B P Sharma A, G Monnom, Kumar A, Kumar A, L Labonté, Rastogi V Kumar A Sharma E K Verma A K Gupta R S Gupta M Saxena M Singh S, V Rastogi   +8 more
core   +4 more sources

Controlling magnetization reversal in Co/Pt nanostructures with perpendicular anisotropy [PDF]

, 2009
We demonstrate a simple method to tailor the magnetization reversal mechanisms of Co/Pt multilayers by depositing them onto large area nanoporous anodized alumina (AAO) with various aspect ratios, A = pore depth/diameter.
Dumas, Randy K., Eibagi, Nasim, Lai, Chih-Huang, Liu, Kai, Rahman, M. Tofizur, Shams, Nazmun N, Wu, Yun-Chung   +6 more
core   +2 more sources

Supercontinuum generation in large mode-area microstructured fibers

Optics Express, 2005
Supercontinuum generation in large mode-area microstructured fibers is demonstrated by launching into the fiber ns pulses from a passively Q-switched Nd:YAG laser. The special properties of these fibers open the way to compact, single-mode, high-power supercontinuum sources with a low divergence of the output beam.
G, Genty, T, Ritari, H, Ludvigsen
openaire   +2 more sources

Large mode area waveguide based high-energy passively Q-switched laser in silicon photonics [PDF]

EPJ Web of Conferences
We demonstrate high energy Q-switched pulse generation with the help of a large mode area gain waveguide in a silicon photonics device. Output pulse energy >150 nJ and laser slope efficiency of 40% is shown.
Singh Neetesh, Lorenzen Jan, Sinobad Milan, Wang Kai, Liapis Andreas C., Frankis Henry, Gaafar Mahmoud A., Haugg Stefanie, Francis Henry, Carreira Jose, Geiselmann Michael, Herr Tobias, Bradley Jonathan, Sun Zhipei, Garcia-Blanco Sonia M., Kartner Franz X.   +15 more
doaj   +1 more source

High-Order Modes Suppression in All-Glass Large-Mode Area Rare-Earth Doped Optical Fibers with Modified Cladding

Photonics, 2022
In the present work we have developed and realized a high core-to-cladding diameters ratio active optical fibers operated in a single-mode regime due to specially designed structure containing boron-doped and fluorine-doped rods.
Svetlana S. Aleshkina, Maxim M. Khudyakov, Tatiana A. Kashaykina, Mikhail V. Yashkov, Mikhail Yu. Salganskii, Vladimir V. Velmiskin, Mikhail M. Bubnov, Mikhail E. Likhachev   +7 more
doaj   +1 more source

Black Phosphorus Q-Switched Large-Mode-Area Tm-Doped Fiber Laser

International Journal of Optics, 2018
We report on a passively Q-switched fiber laser with black phosphorus as saturable absorber. By employing the sol-gel fabricated large-mode-area Tm-doped fiber as gain medium, a high-energy Q-switched fiber laser has been demonstrated which delivers the ...
Yan Ren, Zhipeng Qin, Guoqiang Xie, Zhen Qiao, Jingui Ma, Peng Yuan, Liejia Qian, Shikai Wang, Chunlei Yu, Lili Hu   +9 more
doaj   +1 more source

Refractivity of P₂O₅-Al₂O₃-SiO₂ Glass in Optical Fibers

Photonics, 2023
A significant change in the refractive index profiles for the large mode area phosphoroaluminosilicate (PAS) core optical fibers was observed in comparison to that in preforms.
Mikhail E. Likhachev, Tatiana S. Zaushitsyna, Vitaliya A. Agakhanova, Liudmila D. Iskhakova, Svetlana S. Aleshkina, Mikhail M. Bubnov, Alexey S. Lobanov, Denis S. Lipatov   +7 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