Results 11 to 20 of about 818,714 (249)

Compact 15 mJ Fiber–Solid Hybrid Hundred-Picosecond Laser Source for Laser Ablation on Copper

open access: yesApplied Sciences, 2022
We report on a millijoule-level fiber–solid hybrid hundred-picosecond laser system with a stable performance and compact structure. The laser system is based on a master oscillator power amplifier structure containing an all-fiber master oscillator, a ...
Tingting Wang   +7 more
doaj   +1 more source

51.5 W monolithic single frequency 1.97 $\mathrm {\mu} $m Tm-doped fiber amplifier

open access: yesHigh Power Laser Science and Engineering, 2013
We demonstrate a monolithic single frequency Tm-doped fiber amplifier with output power of 51.5 W. A single frequency fiber laser at 1.97 $\mathrm {\mu} $m is amplified by a cascaded master oscillator power amplifier (MOPA) system with all-fiber ...
Xiong Wang   +4 more
doaj   +1 more source

Amplifying Orbital Angular Momentum Modes in Ring-Core Erbium-Doped Fiber

open access: yesResearch, 2020
Lots of research efforts have been devoted to increase the transmission capacity in optical communications using orbital angular momentum (OAM) multiplexing. To enable long-haul OAM mode transmission, an in-line OAM fiber amplifier is desired.
Jun Liu   +8 more
doaj   +1 more source

MINIMIZATION OF NOISE FLOOR LEVEL OF FIBER-OPTIC INTERFEROMETRIC SENSOR ARRAY BY ADJUSTMENT OF OPERATIONAL AMPLIFIER CASCADE PARAMETERS [PDF]

open access: yesНаучно-технический вестник информационных технологий, механики и оптики, 2019
Subject of Research. The paper presents results of the experimental study on the dependence of the noise floor level of a fiber-optic interferometric sensor array on the gain factor of operational amplifiers located on the signal processing board and ...
Matvey V. Bykadorov   +3 more
doaj   +1 more source

Mathematical model of optical amplifier using nonlinear stimulated Brillouin scattering (SBS) in optical fiber

open access: yesمجلة بغداد للعلوم, 2007
We demonstrate the results of a mathematical model for investigation the nonlinear Stimulated Brillouin Scattering (SBS), which can be employed to achieve high optical amplifier.
Baghdad Science Journal
doaj   +1 more source

Theoretical Analysis of Thermal Distribution and Waveform Evolution in Pulsed Ytterbium-Doped Fiber Amplifier with Extra Feedback

open access: yesPhotonics, 2023
Pulsed ytterbium-doped fiber amplifiers (YDFA) with ns-level signal width are important devices for obtaining high-power pulsed lasers. When some components in the amplifier are ineffective, e.g., the isolator or fiber is damaged, extra feedback light is
Xiaolei Bai   +3 more
doaj   +1 more source

Reflective Semiconductor Optical Amplifier Direct Modulation Capability Enhancement Using Birefringent Fiber Loop

open access: yesApplied Sciences, 2020
The feasibility of employing a birefringent fiber loop to enhance the performance of a directly modulated reflective semiconductor optical amplifier is experimentally demonstrated for the first time.
Zoe V. Rizou   +3 more
doaj   +1 more source

Optimisation of short pulse multi-stage Yb fiber amplifier systems using commercial gain-modelling software

open access: yes, 2006
We demonstrate the accuracy of commercial telecommunications industry software for modelling Yb-fiber amplifiers. Simulations enabled optimisation of a broad bandwidth ultra-short pulse four-stage amplifier system. The predicted results were confirmed by
D. J. Richardson   +5 more
core   +2 more sources

Loop Mirror Multi-wavelength Brillouin Fiber Laser Utilizing Semiconductor Optical Amplifier and Fiber Bragg Grating

open access: yesMATEC Web of Conferences, 2017
In this paper, the development of loop mirror multi-wavelength Brillouin fiber laser utilizing semiconductor optical amplifier and fiber Bragg grating is successfully demonstrated. A multi-wavelength BFL structure employs a single mode fiber that acts as
Idris N. A.   +5 more
doaj   +1 more source

Wideband and flat gain series erbium doped fiber amplifier using hybrid active fiber with backward pumping distribution technique

open access: yesResults in Physics, 2019
A modern wideband and flat gain erbium-doped fiber amplifier (EDFA) is suggested and accomplished, by employing a recently fabricated hafnia-bismuth-erbium doped fiber (HB-EDF) and zirconia-erbium doped fiber (Zr-EDF) as a hybrid active fiber.
Alabbas A. Al-Azzawi   +7 more
doaj   +1 more source

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