Results 111 to 120 of about 173,725 (252)
First demonstration of single trench fiber for delocalization of higher order modes
We demonstrate an ytterbium-doped single-trench fiber ensuring a high losses ratio (~1000) and low power fraction (~0.7) between the higher-order-modes and fundamental-mode with excellent bend robustness and 85% laser efficiency at a wavelength of ...
Baskiotis, C. +3 more
core
Asymmetric Very Large Mode Area Fiber with Enhanced Higher Order Mode Delocalization
, 2015 A novel very-large-mode-area asymmetric rod-type fiber was fabricated and experimentally characterized. The fiber supports effective and robust single-mode operation for a core diameter of 66μm making it attractive for high power amplifier ...
Antonio-Lopez, Enrique +10 more
core +1 more source
Nonlinear spectral broadening of femtosecond pulses in a Bragg fiber: experimental demonstration
, 2008 Propagation of femtosecond pulses in a photonic band-gap silica core Bragg fiber is experimentally studied. Nonlinear spectral broadening is demonstrated in conformity with predictions made in a recent theoretical ...
Likhachev, M. +7 more
core
, 1998 We demonstrate that appropriately designed doped multi-mode fibers provide robust single mode output when used within a fiber laser cavity. Using a novel large mode area fiber we demonstrate record single mode (M2 < 1.2) pulse energies of > 0.5mJ ...
Dong, L. +5 more
core +1 more source
Spectral characteristics of chirped fiber Bragg gratings in large-mode-area fibers
, 2011 A matrix method is extended to solve the multimode coupling differential equations, and thereby the spectral characteristics of the chirped Bragg gratings in large-mode-area fibers (LMA FBGs) are studied theoretically.
ZhaoBaoyin +3 more
core
Gain equalization of a six-mode-group ring core multimode EDFA
We propose a 6-mode-group ring core multimode erbium doped fiber amplifier (RC-MMEDFA) capable of providing almost identical gain among the six mode groups within the C band using either core- or cladding-pumped ...
Alam, S.U. +6 more
core
Robust single-mode high average power very large mode area fiber amplifiers
, 2022 Paper AMB11Ytterbium-doped Large Pitch Fibers with very large mode area are investigated in a high power fiber amplifier. An average output power of 294W is demonstrated, maintaining robust single-mode operation with a mode field diameter of ...
Stutzki, F. +5 more
core
, 2015 With continuous efforts and practical managing experiences, the chelate precursor doping method has been justified as an effective way to dope rare-earth ions into silica host materials, a key technique in making large-mode-area silica fibers for high ...
Zhan, Huan +7 more
core +1 more source
Novel Optical Fibers for High-Capacity Transmission System
Dianxin kexue, 2014 Novel optical fibers for increasing capacity for transmission system was discussed.For conventional fibers for long haul transmission,because transmission impairments such as chromatic dispersion,polarization-mode dispersion can be perfectly compensated ...
Mingjun Li, Hao Chen
doaj +2 more sources
Polarization mode dispersion reduction in spun silica holey fibres
We report the fabrication of a spun holey optical fibre. Our experiments show that the complex air/glass transverse structure can be retained when the preform is spun during the fibre drawing process.
Petrovich, M.N. +5 more
core