Results 61 to 70 of about 173,725 (252)

Stabilized Large Mode Area in Tapered Photonic Crystal Fiber for Stable Coupling

IEEE Photonics Journal, 2012
A rigorous modal solution approach based on the numerically efficient finite element method (FEM) has been used to design a tapered photonic crystal fiber with a large mode area that could be efficiently coupled to an optical fiber.
M. Uthman, B. M. A. Rahman, N. Kejalakshmy, A. Agrawal, H. Abana, K. T. V. Grattan   +5 more
doaj   +1 more source

1.06 µm picosecond pulsed, normal dispersion pumping for generating efficient broadband infrared supercontinuum in meter-length single-mode tellurite holey fiber with high Raman gain coefficient

, 2011
We investigate efficient broadband infrared supercontinuum generation in meter-length single-mode small-core tellurite holey fiber. The fiber is pumped by 1.06µm picosecond pulses in the normal dispersion region.
Shi, Jindan, Feng, Xian, Teh, Peh Siong, Chen, Kangkang, Horak, Peter, Ibsen, Morten, Richardson, David J., Alam, Shaif-ul, Loh, Wei H.   +8 more
core   +1 more source

On the Raman threshold for passive large mode area fibers

, 2022
Paper 791408The output power of fiber optic laser systems has been exponentially increasing in the last years. However, non-linear effects, and in particular stimulated Raman scattering (SRS), are threatening to seriously limit the development pace in ...
Tünnermann, A., Jauregui, C., Limpert, J.   +2 more
core   +1 more source

Multi-kilowatt single-mode ytterbium-doped large-core fiber laser

, 2009
We have demonstrated a highly efficient cladding-pumped ytterbium-doped fiber laser, generating >2.1 kW of continuous-wave output power at 1.1 µm with 74% slope efficiency with respect to launched pump power.
Chung, Seung-Hwan, Nilsson, Johan, Boyland, Alexander J., Sahu, Jayanta K., Payne, David N., Jeong, Yoonchan   +5 more
core   +1 more source

Single-mode propagation with 205mm mode-field diameter in a passive large pitch fiber

, 2022
Paper 108970W, 6 S.We present theoretical and experimental investigations on effective single-transverse mode propagation in very large mode area (VLMA) fibers.
Nold, J., Stutzki, F., Steinkopff, A., Haarlammert, N., Bierlich, J., Hupel, C., Tünnermann, A., Jauregui, C., Limpert, J.   +8 more
core   +1 more source

Step-index high-absorption Yb-doped large-mode-area fiber with Ge-doped raised cladding.

Optics Letters, 2018
We report an all-solid large-mode-area (LMA) step-index fiber offering high absorption and low core numerical aperture (NA) by introducing a highly ytterbium-doped P:Al core and germanium-doped cladding.
R. Sidharthan, J. Ji, K. Lim, Serene Huiting Lim, Huizi Li, J. Lua, Yanyan Zhou, C. H. Tse, D. Ho, Y. M. Seng, S. Chua, S. Yoo   +11 more
semanticscholar   +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

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

Mitigation of transverse mode instability in large mode area polarization maintaining fibers

, 2023
In this work we present experimental results of transverse mode instabilities in dependence of the polarization input angle in a large-mode area polarization maintaining fiber amplifier.
Häßner, Denny, Jauregui Misas, Cesar, Möller, Friedrich, Haarlammert, Nicoletta, Schreiber, Thomas, Kuhn, Stefan, Palma Vega, Gonzalo   +6 more
core   +1 more source

Efficient fiber Bragg grating and fiber Fabry-Pe'rot sensor multiplexing scheme using a broadband pulsed mode-locked laser

, 2005
A pulsed broadband mode-locked laser (MLL) combined with interferometric interrogation is shown to yield an efficient means of multiplexing a large number of fiber Bragg grating (FBG) or fiber Fabry-Perot (FFP) strain sensors with high performance ...
Flockhart, G M H, Cranch, G A, Kirkendall, C K   +2 more
core   +1 more source