Results 1 to 10 of about 86,599 (157)

Dynamics Simulation and Experimental Investigation of Q-Switching in a Self-Mode-Locked Semiconductor Disk Laser

IEEE Photonics Journal, 2022
Q-switching in a mode-locked laser not only makes the amplitude of every single output pulse unequal, but also limits the time width and peak power of output pulses.
Peng Zhang, Renjiang Zhu, Tao Wang, Yadong Wu, Cunzhu Tong, Lijie Wang, Yanrong Song   +6 more
doaj   +1 more source

Revealing the Evolution from Q-Switching to Mode-Locking in an Erbium-Doped Fiber Laser Using Tungsten Trioxide Saturable Absorber

Photonics, 2022
Passively Q-switching and mode-locking technologies can generate short pulses with durations that differ by several orders of magnitude widely used in different applications.
Xin Tan, Ya Liu, Yongkang Zheng, Zewu Xie, Guoqing Hu   +4 more
doaj   +1 more source

Dual Regime Mode-Locked and Q-Switched Erbium-Doped Fiber Laser by Employing Graphene Filament–Chitin Film-Based Passive Saturable Absorber

Micromachines, 2023
We investigate the dynamics of high energy dual regime unidirectional Erbium-doped fiber laser in ring cavity, which is passively Q-switched and mode-locked through the use of an environmentally friendly graphene filament–chitin film-based saturable ...
Siti Nur Fatin Zuikafly, Harith Ahmad, Mohd Faizal Ismail, Mohd Azizi Abdul Rahman, Wira Jazair Yahya, Nurulakmar Abu Husain, Khairil Anwar Abu Kassim, Hafizal Yahaya, Fauzan Ahmad   +8 more
doaj   +1 more source

Optical properties and applications of SnS2 SAs with different thickness

Opto-Electronic Advances, 2021
Q-switched lasers have occupied important roles in industrial applications such as laser marking, engraving, welding, and cutting due to their advantages in high pulse energy. Here, SnS2-based Q-switched lasers are implemented.
Mengli Liu, Hongbo Wu, Ximei Liu, Yaorong Wang, Ming Lei, Wenjun Liu, Wei Guo, Zhiyi Wei   +7 more
doaj   +1 more source

Review of the Yb³⁺:ScBO₃ Laser Crystal Growth, Characterization, and Laser Applications

Applied Sciences, 2021
Passive Q-switching is an effective approach for generating pulsed lasers, owing to its compact and additional modulation-free design. However, to compare favorably with active Q-switching and multi-stage amplification, the output energy needs to be ...
Dazhi Lu, Xiaoheng Li, Haohai Yu, Huaijin Zhang, Jiyang Wang   +4 more
doaj   +1 more source

On-Demand Q-Switching Regime in Optically Injected Dual-Section Quantum-Dot Laser

IEEE Photonics Journal, 2022
Pure Q-switching (self-pulsating) behaviour is shown for the first time in an optically injected two-section quantum-dot laser. Upon CW optical injection, it was possible to switch the operation regime from free-running mode-locking to locked Q-switching.
Ana Filipa Ribeiro, Adam F. Forrest, Maria Ana Cataluna   +2 more
doaj   +1 more source

Low-dimensional saturable absorbers for ultrafast photonics in solid-state bulk lasers: status and prospects

Nanophotonics, 2020
Low-dimensional (LD) materials have originated a range of innovative applications in photonics and optoelectronics owning to their advantages of ultrafast carrier response and distinct nonlinear saturable absorption properties.
Hao Qianqian, Wang Cong, Liu Wenxin, Liu Xiaoqin, Liu Jie, Zhang Han   +5 more
doaj   +1 more source

A Low Q Three-Phase Series Resonant Converter for PV Applications

Energies, 2023
In this paper, a soft-switched three-phase resonant converter with a low quality factor (Q) design is proposed for Photovoltaic (PV) energy harvesting systems with a very wide range of operating conditions.
Abirami Kalathy, Arpan Laha, Majid Pahlevani, Praveen Jain   +3 more
doaj   +1 more source

Passive Q-switched Dy:ZBLAN fibre laser at 3.1 µm [PDF]

EPJ Web of Conferences, 2023
The passive Q-switching performance of an in-band pumped Dy-doped fluorozirconate fibre laser emitting around 3.1 µm is investigated. Passively Q-switched laser operation is demonstrated employing semi-conductor saturable absorber mirrors.
Pisani Fedele, Tang Pinghua, Coluccelli Nicola, Laporta Paolo, Galzerano Gianluca   +4 more
doaj   +1 more source

Gold Nanorods as Single and Combined Saturable Absorbers for a High-Energy $Q$-Switched Nd:YAG Solid-State Laser

IEEE Photonics Journal, 2015
Gold nanorods (GNRs) with surface plasmon resonance peak at 1063.8 nm were fabricated and experimentally exploited as the single and combined saturable absorber (SA) in a Q-switched Nd:YAG laser for the first time. In the situation using GNRs as a single
H. T. Huang, M. Li, L. Wang, X. Liu, D. Y. Shen, D. Y. Tang   +5 more
doaj   +1 more source