Results 61 to 70 of about 3,036,443 (205)

Q-Switched Mode-Locking by Cascaded Second-Order Nonlinearity in a Nd:YVO₄ Laser

Photonics
A diode-pumped Q-switched mode-locked Nd:YVO4 laser via a positive cascaded second-order Kerr lens using periodically poled MgO:SLT at 1064 nm was reported. Q-switched mode-locking performances, including pulse duration, output power, and bandwidth, were
Jia-Yang Chen, Wei-Wei Hsiang, Shou-Tai Lin   +2 more
doaj   +1 more source

Passive Q-switched mode locking of double-clading Yb : fiber laser with ion-implanted GaAs

, 2004
We report the technique of the ion-implanted semi-insulating GaAs wafer used for passive Q-switched mode locking in double-cladding Yb:fiber laser. The wafer was implanted with 400-keV energy, 10(16)/cm(2) dose As+ ions, and was annealed at 600degreesC ...
Ma XY, Wang, YG, Chinese Acad Sci, Inst Semicond, Beijing 100083, Peoples R China., Fu SG, Fan WD, Wang YG, Li Q   +5 more
core  

Electro-optically Q-switched operation of a high-peak-power Tb:LiYF4 green laser [PDF]

We report on an electro-optically Q-switched Tb:LiYF4 green laser pumped by a frequency-doubled optically pumped semiconductor blue laser. The electro-optically Q-switched characteristics were studied under a wide range of repetition rates from 200 Hz to
UEHARA, Hiyori, YANG, Haotian, CHEN, Hengiun, LI, Enhao, YASUHARA, Ryo   +4 more
core  

1.4 W Passively Q-Switched Mode-Locked Tm:CALGO Laser with a MoS₂ Saturable Absorber

Photonics
The passively Q-switched mode-locked (QML) operation of a Tm:CaGdAlO4 (Tm:CALGO) bulk laser pumped by a wavelength-tunable Ti:sapphire oscillator using molybdenum disulfide (MoS2) as a saturable absorber was demonstrated.
Weijun Ling, Hao Xu, Jinfang Yang, Xue Qiu, Taotao He, Purui An, Chao Bi, Shichao Yuan, Man Wang, Xinye Tian, Zhong Dong   +10 more
doaj   +1 more source

Passively Q-switched Nd : GdVO4 laser with In0.25Ga0.75As being an output coupler

, 2007
We report a diode-end-pumped passively Q-switched Nd:GdVO4 laser operating at 1.06 mu m with In0.25Ga0.75As being the saturable absorber as well as an output coupler.
Zhang BY (Zhang Bingyuan), Chen M (Chen Meng), Zhang, BY, Beijing Univ Technol, Coll Laser Engn, Beijing 100022, Peoples R China. 电子邮箱地址: bingyuanzhang@yahoo.com, Wang YG (Wang Yonggang), Li G (Li Gang), Wang GJ (Wang Guoju)   +5 more
core  

Effect of Lower-Level Relaxation on the Pulse Generation Performance of Q-Switched Nd:YAG Laser

Photonics
When analyzing and designing Q-switched Nd:YAG lasers, the impact of lower-energy-level relaxation on the pulse waveform is often ignored. This approximation typically does not result in significant deviations when the laser pulse duration is much longer
Fuqiang Ma, Shiyu Wang, Bingbin Li, Peijin Shang, Jinyou Li, Zheyuan Li   +5 more
doaj   +1 more source

Combination of Non-Ablative Fractional Laser with Q-Switched Laser for the Treatment of Becker's Nevus: Efficacy and Limitations. [PDF]

Ann Dermatol, 2023
Han HS, Hong JK, Yoo KH, Seo SJ.
europepmc   +1 more source

Simulation of Ho:CaF2 Q-switched Tm:Y3Al5O12 Laser

, 2012
[[abstract]]The optical performance of the Ho:CaF2 Q-switched Tm:YAG laser as a function of the initial population in the ground state of the Ho:CaF2 saturable absorber, pumping rate, and the reflectivity of the output coupler are studied numerically ...
Kuo, Yen-Kuang; Chen, Hsiu-Fen; Chang, Yi-An
core  

Mode-Hopping-Free Single-Longitudinal-Mode Actively Q-Switched Ring Cavity Fiber Laser With an Injection Seeding Technique

IEEE Photonics Journal, 2017
With a fiber pigtailed electro-optic modulator as the active Q-switch, mode-hopping-free single-longitudinal-mode pulses are generated by a ring cavity fiber laser based on the injection seeding technique.
Wencai Li, Haowei Liu, Ji Zhang, Bo Yao, Sujuan Feng, Li Wei, Qinghe Mao   +6 more
doaj   +1 more source

Q-Switched Laser Combined with Intense Pulsed Laser in the Treatment of Melasma Based on Reflection Confocal Microscope. [PDF]

Comput Math Methods Med, 2022
Xu J, Pu Y.
europepmc   +1 more source