Results 31 to 40 of about 11,012 (313)

The master equation for passive modelocking [PDF]

EPJ Web of Conferences, 2023
Passive modelocking (PML) of lasers is pivotal in modern science and industry. Here, solving a half-century-long challenge, we present the first master equation (ME) describing PML on all time scales, from Q-switched to fundamental and harmonic ...
Prati Franco, Perego Auro M., Redondo Javier, de Valcárcel Germán J.   +3 more
doaj   +1 more source

Design and realization of a compact and multi-purpose passively Q-switched ND:YAG laser system [PDF]

Journal of Engineering Science and Military Technologies, 2018
In this paper, a passively Q-switched pulsed Nd:YAG laser system is designed and realized for defense applications. Our previously published generalized mathematical model for passively Q-switched lasers is used to help extract the design parameters of ...
Adel Mohamed
doaj   +1 more source

880-nm-Diode-Laser-End-Pumped Electrooptically Q-Switched Nd:YLF Laser With High Energy and Good Beam Quality at 1047 nm and 1 kHz

IEEE Photonics Journal, 2016
An electrooptically Q-switched Nd:YLF laser end-pumped by an 880-nm laser diode with high energy and short pulsewidth at 1 kHz is demonstrated. The asymmetry of the focal lengths of thermal lens along the $a$-axis and $c$-axis is observed, and the ...
Zilong Zhang, Qiang Liu, Mingming Nie, Encai Ji, Mali Gong   +4 more
doaj   +1 more source

Layered Ta₂NiS₅ Q-Switcher for Mid-Infrared Fluoride Fiber Laser

IEEE Photonics Journal, 2021
We have demonstrated the stable Q-switched Er-doped fluoride fiber laser with the help of the few-layered Ta2NiS5 in the mid-infrared spectral range. We fabricated the mid-infrared saturable absorber mirror (SAM) by depositing the layered Ta2NiS5 on a ...
Qinwen Duan, Lingling Yang, Yuan He, Longlong Chen, Jie Li, Lili Miao, Chujun Zhao   +6 more
doaj   +1 more source

RESEARCH AND DEVELOPMENT OF DIODE-PUMPED PASSIVELY Q-SWITCHED Nd:YVO4 LASERS USING Cr4+:YAG CRYSTAL AS SATURABLE ABSORBER

ASEAN Journal on Science and Technology for Development, 2017
The results in research and development of diode-pumped passively Q-switched Nd:YVO4 lasers are presented with Cr4+:YAG crystal used as an intra-cavity saturable absorber.
Nguyen Trong Nghia, Trinh Dinh Huy, Le Thi Thanh Nga, Nguyen Dai Hung   +3 more
doaj   +1 more source

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

Characteristics of Q-switched cladding-pumped ytterbium-doped fiber lasers with different high-energy fiber designs

, 2001
We theoretically and experimentally analyze Q-switched cladding pumped ytterbium-doped fiber lasers designed for high pulse energies. We compare the extractable energy from two high-energy fiber designs: (1) single- or few-moded low-NA large mode area ...
Alvarez-Chavez, J.A., Clarkson, W.A., Nilsson, J., Offerhaus, H.L., Turner, P.W., Renaud, Cyril C., Richardson, D.J., Grudinin, A.B.   +7 more
core   +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

Graphene actively Q-switched lasers

, 2017
Graphene electro-optic modulators (GEOMs) are emerging as a viable alternative to conventional material-based modulators mainly due to their broadband and ultrafast performance.
Zhipei Sun, Qi, M, Qi, Mei, Bai, J, Hasan, T, Jintao Bai, Aksimsek, S, Diao Li, AKŞİMŞEK, HÜSEYİN SİNAN, Sinan Aksimsek, Hui Xue, Ren, Zhaoyu, Nikolai Chekurov, Qing Dai, Kim, W, Chekurov, Nikolai, Mei Qi, Ren, Z, Li, Diao, Xue, H, Harri Lipsanen, Chekurov, N, Bai, Jintao, Tawfique Hasan, ,, Ye, F, Wonjae Kim, Wang, Yadong, Dai, Qing, Changfeng Li, Lipsanen, Harri, Yadong Wang, Zhaoyu Ren, Li, D, Li, C, Lipsanen, H, Juha Riikonen, Fangwei Ye, Li, Changfeng, Dai, Q, Sun, Zhipei, Riikonen, Juha, Wang, Y, Riikonen, J, Hasan, Tawfique, Xue, Hui, Kim, Wonjae, Ye, Fangwei, Sun, Z   +48 more
core   +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