Results 31 to 40 of about 138,810 (343)

2D Saturable Absorbers for Fibre Lasers [PDF]

, 2015
© 2015.Two-dimensional (2D) nanomaterials are an emergent and promising platform for future photonic and optoelectronic applications. Here, we review recent progress demonstrating the application of 2D nanomaterials as versatile, wideband saturable ...
Kelleher, E, Woodward, R
core   +2 more sources

Ag/MXene as Saturable Absorber for Tm:Ho Co-Doped Q-Switched Fiber Laser

Nanomaterials
Q-switched fiber lasers have become reliable light sources for generating high-energy pulses, which can be passively modulated by saturable absorbers with excellent nonlinear optical properties.
Xiaoli Zhao, Jingxuan Sun, Yachen Wang, Xiaogang Wang, Bo Fu   +4 more
doaj   +1 more source

Graphdiyne-Based All-Solid-State Passively Q-Switched Tm:YAP Laser at 2 μm

Nanomaterials, 2023
All-solid-state Tm lasers have a wider wavelength range and higher output power compared to other types of lasers. In this work, we demonstrate an all-solid-state, high repetition, Tm:YAP laser Q-switched by a graphdiyne (GDY) saturable absorber.
Qing Wu, Yanyu Wang, Gang Zhao, Haibin Wu, Yi Hu, Mengke Wang   +5 more
doaj   +1 more source

Numerical simulation for generation of stable single mode-locked pulses from QML laser with EO modulator and V3+:YAG

Results in Physics, 2018
The instability of mode-locked pulses underneath Q-switched envelop limits the applications of Q-switched and mode-locked (QML) lasers. In this paper we present a developed theoretical model for QML laser at 1.3 µm.
Gang Zhang, Zhiyong Jiao, Xianfeng Xu
doaj   +1 more source

Dual Q-switched laser outputs from a single lasing medium using an intracavity MEMS micromirror array [PDF]

, 2012
An intracavity array of individually controlled microelectromechanical system scanning micromirrors was used to actively Q-switch a single side-pumped Nd:YAG gain medium.
Bauer, Bouyge, Couderc, Crunteanu, Deepak Uttamchandani, Fabert, Fabert, Inoue, Kaajakari, Liu, Lubeigt, Masson, Ralf Bauer, Schilt, Walter Lubeigt, Zayhowski, Zhang   +16 more
core   +1 more source

Four-Dimensional Thermal Analysis of 888 nm Pumped Nd:YVO4 Dual-Rod Acousto-Optic Q-Switched Laser

Applied Sciences, 2017
A theoretical analysis upon the four-dimensional (4D) spatio-temporal temperature dependent dynamics of 888 nm pumped Nd:YVO 4 dual-rod laser is established, which is valid in both continuous-wave (CW) and acousto-optic (AO) Q-switched pulse ...
Yijie Shen, Wenqi Zhang, Mali Gong, Yuan Meng, Yunbin Wang, Xing Fu   +5 more
doaj   +1 more source

Indium Tin Oxide Nanowire Arrays as a Saturable Absorber for Mid-Infrared Er:Ca_0.8Sr_0.2F₂ Laser

Nanomaterials, 2022
We demonstrated a passively Q-switched Er:Ca0.8Sr0.2F2 laser with indium tin oxide nanowire arrays as an optical modulator in the mid-infrared region.
Yuanhao Zhao, Mengyu Zong, Jie Zheng, Zhen Zhang, Qianqian Peng, Shouzhen Jiang, Jie Liu, Jingjing Liu, Liangbi Su   +8 more
doaj   +1 more source

Bistability and pulsations in semiconductor lasers with inhomogeneous current injection [PDF]

, 1982
Bistability and pulsation at microwave frequencies are observed in CW GaAs semiconductor lasers with inhomogeneous current injection. Inhomogeneous current injection is achieved with a segmented contact structure.
Harder, Christoph, Lau, Kam Y., Yariv, Amnon   +2 more
core   +1 more source

Ultrashort Q-switched pulses from a passively mode-locked distributed Bragg reflector semiconductor laser [PDF]

, 2012
A compact semiconductor mode-locked laser (MLL) is presented that demonstrates strong passive Q-switched mode-locking over a wide range of drive conditions.
Cheung, Flynn, G. Mezösi, Heck, Huttl, Lu, Marc Sorel, Marco Zanola, Michael J. Strain, Stolarz, Strain, Thompson, Thompson   +12 more
core   +1 more source

Analysing the significance of small conformational changes and low occupancy states in serial crystallographic data

FEBS Open Bio, EarlyView.
This protocol paper outlines methods to establish the success of a time‐resolved serial crystallographic experiment, by means of statistical analysis of timepoint data in reciprocal space and models in real space. We show how to amplify the signal from excited states to visualise structural changes in successful experiments.
Jake Hill, Yelyzaveta Pulnova, Elke De Zitter, Helen M. Ginn, Briony A. Yorke   +4 more
wiley   +1 more source