Results 51 to 60 of about 3,036,443 (205)

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

Graphene Q-Switched Compact Yb:YAG Laser

IEEE Photonics Journal, 2015
We describe a compact Yb:YAG laser Q-switched by a graphene-based saturable absorber and pumped by a laser diode at 932 or 969 nm. The compact laser generates a maximum average output power value of 185 mW at 1032 nm with a slope efficiency value of 12%.
Josep Maria Serres, Venkatesan Jambunathan, Xavier Mateos, Pavel Loiko, Antonio Lucianetti, Tomas Mocek, Konstantin Yumashev, Valentin Petrov, Uwe Griebner, Magdalena Aguilo, Francesc Diaz   +10 more
doaj   +1 more source

Passively Q-switched nd:YAG laser via a WS2 saturable absorber

, 2016
In this work, we report a passively Q-switched Nd:YAG laser at 1064 nm by using WS2 solution as the saturable absorber (SA). The WS2 solution with different concentrations (0.25, 0.5, and 1 mg/ml) were fabricated by the liquid-phase-exfoliated method ...
Wang, Yonggang, Wang, YG, Sun, Hang, Duan, Lina, Li, Lu, Wang, Xi   +5 more
core   +1 more source

Experiments of a diode-pumped Nd : GdVO4/LT-GaAs Q-switched and mode-locked laser

, 2007
A diode-pumped passively Q-switched mode-locked (QML) Nd:GdVO4 laser with a low temperature GaAs (LT-GaAs) saturable absorber is presented. The maximal Q-switched mode-locked average output power was 798 mW with the Q-switched envelop having a repetition
Fu Q, Yang J, Liu J, Wang Y, Liu, J, Shandong Normal Univ, Coll Phys & Elect, Jinan 250014, Peoples R China. 电子邮箱地址: jieliu@sdnu.edu.cn   +4 more
core  

A 1319nm diode-side-pumped NdYAG laser Q-switched with graphene oxide

, 2013
We have demonstrated a diode-side-pumped Q-switched Nd:YAG laser operating at 1319nm with a saturable absorber of graphene oxide fabricated by the vertical evaporation method.
Sun, Wei, Yang, Yingying, Wang, Yonggang, Hou, Wei, Yu, Haijuan, Lin, Xuechun, Zhang, Ling, Zhao, Weifang, Wang, Lirong, Yan, Shilian, Wang, Yishan   +10 more
core   +1 more source

Analysis of the efficacy of tranexamic acid combined with Q-switched laser and chemical peeling for the treatment of stable melasma

Pifu-xingbing zhenliaoxue zazhi
[Objective] To analyze the efficacy of tranexamic acid (TXA) combined with Q-switched laser and chemical peeling (α hydroxyl acid) for the treatment of stable melasma.
ZHANG Qinghua, HUANG Weiquan, ZHANG Xian, SI Weizhen, ZHONG Jing   +4 more
doaj   +1 more source

Optimised design of fibre-based pulse compressor for gain-switched DFB laser pulses at 1.5 µm [PDF]

, 1999
An optical-fibre based pulse compressor for gain-switched DFB laser pulses has been optimised using a systematic procedure based on the initial complete characterisation of the laser pulses, followed by numerical simulations of the pulse propagation in ...
Barry, Liam P., Thomsen, Benn C., Dudley, John M., Harvey, John D.   +3 more
core   +2 more sources

Graphene q-switched Yb: phosphate glass channel waveguide laser

Q-switched lasers can generate high-energy pulses that can have applications in medicine, material processing and defence. Waveguide lasers have several attractive features such as a low laser threshold and a high slope efficiency, provided that the ...
Pradeesh, K., Dhingra, B.D., Shepherd, D.P., Choudhary, A.   +3 more
core   +1 more source

Generation of RF Intensity-Modulated Laser Pulses by Dual-Frequency Injection Seeding

IEEE Photonics Journal, 2018
In order to obtain high peak power RF intensity-modulated pulses for long-distance applications, a Q-switched Nd:YAG laser is injection seeded by a dual-frequency laser signal. The beat note frequency of the dual-frequency laser signal is adjusted to the
Lijun Cheng, Suhui Yang, Changming Zhao, Haiyang Zhang, Bingjie Sun   +4 more
doaj   +1 more source

A diode-pumped passively Q-switched Tm,Ho:YAP laser with a single-walled carbon nanotube

, 2013
In this letter we present diode-pumped continuous wave (CW) and passively Q-switched a-cut and b-cut Tm,Ho: YAP lasers with a single-walled carbon nanotube saturable absorber (SWCNT-SA).
Li, G. Q., Qiao, W. C., Zhao, G. J., Yang, K. J., Zhao, S. Z., Zheng, L. H., Feng, T. L., Xu, J., Zhao, J., Li, D. C., Wang, Y. G.   +10 more
core   +1 more source