Results 51 to 60 of about 329,633 (198)

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

open access: yesInternational 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   +9 more
doaj   +1 more source

Highly sensitive refractometer with photonic crystal fiber long-period grating

open access: yes, 2007
We present highly sensitive refractometers based on a long-period grating in a large mode area PCF. The maximum sensitivity is 1500 nm/RIU at a refractive index of 1.33, the highest reported for any fiber grating.
Bang, Ole, Rindorf, Lars
core   +1 more source

Reduced micro-deformation attenuation in large-mode area photonic crystal fibers for visible applications

open access: yes, 2003
We consider large-mode area photonic crystal fibers for visible applications where micro-deformation induced attenuation becomes a potential problem when the effective area A_eff is sufficiently large compared to lambda^2.
Baggett   +16 more
core   +1 more source

High average power, widely tunable femtosecond laser source from red to mid-infrared based on an Yb-fiber-laser-pumped optical parametric oscillator [PDF]

open access: yes, 2013
We report on the highly efficient generation of widely tunable femtosecond pulses based on intracavity second harmonic generation (SHG) and sum frequency generation (SFG) in a MgO-doped periodically poled LiNbO3 optical parametric oscillator (OPO), which
Fan, Jintao   +6 more
core   +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

Large mode area fibers with asymmetric bend compensation

open access: yesOptics Express, 2011
Fibers with asymmetrical bend compensation offer to completely remove the tradeoff between mode area and single-modedness, with potentially huge impact on high-power amplification. These fibers would be difficult to fabricate, but are the only fundamental-mode strategy that can remove the bend-distortion limitations on mode-area scaling.
openaire   +2 more sources

133-W pulsed fiber amplifier with large-mode-area fiber [PDF]

open access: yesOptical Engineering, 2006
A master-oscillator fiber power amplifier (MOPA) system with a 4-m-long Yb3+-doped homemade large mode area (LMA) double-clad fiber is reported. The system emits up to 133.8 W of amplified radiation at a wavelength of 1064 nm and a repetition rate of 100 kHz, limited only by the available pump power. Peak power of 300 kW at 20 kHz with a pulse duration
openaire   +1 more source

Low-DMGD, Large-Effective-Area and Low-Bending-Loss 12-LP-Mode Fiber for Mode-Division-Multiplexing

open access: yesIEEE Photonics Journal, 2019
We report the design of 12-LP-mode (21-spatial-mode) fiber with a low differential mode group delay (DMGD), a large effective area, and a low bending loss that is adapted to a mode-division-multiplexing system over the C+L band.
Huan Zhang   +4 more
doaj   +1 more source

Mitigating mode instabilities by controllable mode beating excitation with a photonic lantern

open access: yesFrontiers in Physics, 2023
In this study, a method of stabilizing the output beam of a large-mode-area fiber amplifier operating above the mode instability threshold is demonstrated. A mode control system based on the photonic lantern is used to excite dynamic mode beatings as the
Yao Lu   +27 more
doaj   +1 more source

Millimeter-long Fiber Fabry-Perot cavities

open access: yes, 2016
We demonstrate fiber Fabry-Perot (FFP) cavities with concave mirrors that can be operated at cavity lengths as large as 1.5mm without significant deterioration of the finesse.
Garcia, Sebastien   +6 more
core   +3 more sources

Home - About - Disclaimer - Privacy