Results 41 to 50 of about 4,005 (228)
Generation of Q-switched thulium-doped fiber laser (TDFL) using differentsaturable absorbers [PDF]
, 2016 A Q-switched Thulium-doped Fiber Laser (TDFL) operating at approximately 2 µm wavelength is successfully generated by using four different saturable absorbers (SAs) which are nitrogen-doped graphene in PVA (NG:PVA), nitrogen-doped graphene in PEO (NG:PEO)
Ahmad, F. +5 more
core +3 more sources
, 2018 We present broadband group velocity dispersion (GVD) measurements of commercially available ultra-high numerical aperture fibers (UHNA1, UHNA3, UHNA4, UHNA7 and PM2000D from Coherent-Nufern). Although these fibers are attractive for dispersion management
Ciąćka, Piotr +4 more
core +1 more source
Sensors, 2021 A monolithic fiber laser operating in the short wavelength infrared that is suitable for CO2 gas sensing applications is proposed and presented. The current study reports a laser design based on the direct inscription of a monolithic Fabry–Perot (FP ...
Antreas Theodosiou +5 more
doaj +1 more source
Simulation of Optical Fiber Amplifier Gain Using Equivalent Short Fibers
, 2019 Electromagnetic wave propagation in optical fiber amplifiers obeys Maxwell equations. Using coupled mode theory, the full Maxwell system within an optical fiber amplifier is reduced to a simpler model.
Drake, Dow +3 more
core +1 more source
A 0.82 μm, 105 W diode-pumped thulium-doped all-silica-fiber laser
High Power Laser Science and EngineeringAn all-silica-fiber thulium-doped fiber laser emitting at 0.82 μm on the transition from 3H4 to the ground state 3H6 outputs 105 W continuous-wave power and 555 W quasi-continuous-wave instantaneous power with 0.96% duty cycle in 240 μs rectangular ...
Changshun Hou +6 more
doaj +1 more source
Passively Modelocked All-PM Thulium-Doped Fiber Laser at 2.07
IEEE Photonics Journal, 2022 Here we present a self-started passively mode-locked thulium-doped fiber laser with in-band pumping at 1561 nm that fully retains polarization and emits beyond 2 μm.
Christian Cuadrado-Laborde +3 more
doaj +1 more source
Wideband saturable absorption in few-layer molybdenum diselenide (MoSe₂) for Q-switching Yb-, Er- and Tm-doped fiber lasers. [PDF]
, 2015 We fabricate a free-standing molybdenum diselenide (MoSe2) saturable absorber by embedding liquid-phase exfoliated few-layer MoSe2 flakes into a polymer film.
Hasan, T. +6 more
core +4 more sources
The Dynamics of Multi-Peak Pulsed Generation in a Q-Switched Thulium-Doped Fiber Laser
Photonics, 2022 We demonstrate a detailed theoretical and experimental study of a thulium-doped fiber laser being Q-switched by means of an acousto-optic modulator. The processes leading to the generation of discontinuous multi-peak pulses with an energy of up to 5 μJ ...
Alisa E. Fale +8 more
doaj +1 more source
Advanced Functional Materials, EarlyView.This review systematically highlights the latest achievements in mixed‐valence states relevant to hydrogen and oxygen evolution reactions, providing essential insights into future directions and methods for large‐scale practical implementation. This critical review is expected to provide an overview of recent advancements in diverse valence‐state metal
Jitendra N. Tiwari +4 more
wiley +1 more source
110 W All Fiber Actively Q-Switched Thulium-Doped Fiber Laser
IEEE Photonics Journal, 2015 We report a 100-W-level, repetition rate and pulsewidth tunable, all-fiber, thulium-doped master oscillator power amplifier system. The master oscillator was actively Q-switched by a fiber-coupled acousto-optic modulator.
De-qin Ouyang +6 more
doaj +1 more source