Results 21 to 30 of about 19,656,779 (288)

High–Power 792 nm Fiber–Coupled Semiconductor Laser

Photonics, 2023
The pumping of Tm-doped crystal or fiber by a 792 nm semiconductor laser is an important way to generate a mid-infrared laser, which is widely used in various fields.
Peng Liu, Wanggen Sun, Xiao Sun, Zhen Zhu, Huabing Qin, Jian Su, Chengcheng Liu, Wenjing Tang, Kai Jiang, Wei Xia, Xiangang Xu   +10 more
doaj   +1 more source

5 kW Near-Diffraction-Limited and 8 kW High-Brightness Monolithic Continuous Wave Fiber Lasers Directly Pumped by Laser Diodes

IEEE Photonics Journal, 2017
Tandem pumping technique are traditionally adopted to develop >3-kW continuous-wave (cw) Yb3+-doped fiber lasers, which are usually pumped by other fiber lasers at shorter wavelengths (1018 nm e.g.,).
Qiang Fang, Jinhui Li, Wei Shi, Yuguo Qin, Yang Xu, Xiangjie Meng, Robert A. Norwood, Nasser Peyghambarian   +7 more
doaj   +1 more source

33.8 W Mid-infrared 2.8 μm Er-doped fiber laser with high optical efficiency

Results in Physics, 2023
We demonstrate an efficient, high-power single-end-pumped Er-doped ZBLAN (Er:ZBLAN) fiber laser operating at 2.8 μm. A maximum laser power of 33.8 W at a wavelength of 2.87 μm was achieved with an optical efficiency of 26.4 %.
Junxiang Zhang, Shijie Fu, Quan Sheng, Lu Zhang, Wenxin Xia, Wei Shi, Jianquan Yao   +6 more
doaj   +1 more source

10.6 kW high-brightness cascade-end-pumped monolithic fiber lasers directly pumped by laser diodes in step-index large mode area double cladding fiber

Results in Physics, 2019
A high-brightness single-end pumping monolithic fiber laser with 10.6 kW output power has been demonstrated through laser diode pumping schemes in traditional step-index large mode area double cladding fiber for the first time, and the configuration of ...
Honghuan Lin, Lixin Xu, Chengyu Li, Qiang Shu, Qiuhui Chu, Lianghua Xie, Chao Guo, Pengfei Zhao, Zhebiao Li, Jianjun Wang, Feng Jing, Xuan Tang   +11 more
doaj   +1 more source

Energy Transfer and Cross-Relaxation Induced Efficient 2.78 μm Emission in Er³⁺/Tm³⁺: PbF₂ mid-Infrared Laser Crystal

Crystals, 2021
An efficient enhancement of 2.78 μm emission from the transition of Er3+: 4I11/2 → 4I13/2 by Tm3+ introduction in the Er/Tm: PbF2 crystal was grown by the Bridgman technique for the first time. The spectroscopic properties, energy transfer mechanism, and
Jiayu Liao, Qiudi Chen, Xiaochen Niu, Peixiong Zhang, Huiyu Tan, Fengkai Ma, Zhen Li, Siqi Zhu, Yin Hang, Qiguo Yang, Zhenqiang Chen   +10 more
doaj   +1 more source

MEMS-Based Tunable Linear-Cavity Fiber Laser

IEEE Photonics Journal, 2012
A novel tunable fiber laser employing a linear cavity in conjunction with a microelectromechanical system (MEMS) is proposed and experimentally demonstrated.
David Michel, Feng Xiao, Kamal Alameh
doaj   +1 more source

2.58 kW Narrow Linewidth Fiber Laser Based on a Compact Structure with a Chirped and Tilted Fiber Bragg Grating for Raman Suppression

Photonics, 2021
We report a high power, narrow linewidth fiber laser based on oscillator one-stage power amplification configuration. A fiber oscillator with a center wavelength of 1080 nm is used as the seed, which is based on a high reflection fiber Bragg grating (FBG)
Xin Tian, Chenhui Gao, Chongwei Wang, Xiaofan Zhao, Meng Wang, Xiaoming Xi, Zefeng Wang   +6 more
doaj   +1 more source

230 mW of blue light from a thulium-doped upconversion fiber laser [PDF]

, 1997
We demonstrate a powerful diode-pumped blue laser source, consisting of a 7W diode at 807nm that pumps a Nd:YAG laser giving 1.6W with good beam quality at 1123nm, and a thulium-doped upconversion fiber laser.
Tropper, A.C., Hanna, D.C., Moore, N., Clarkson, W.A., Maze, G., Paschotta, R.   +5 more
core   +1 more source

Possible explanations for different surface quality in laser cutting with 1 micron and 10 microns beams [PDF]

, 2012
In laser　cutting　of　thick　steel　sheets,　quality　difference　is　observed　between　cut　surfaces　obtained　with 1 micron and 10 micron laser beams. This paper investigates physical mechanisms for this interesting and important problem of the wavelength ...
Remy Fabbro, Koji Hirano, FABBRO, Rémy, HIRANO, Koji   +3 more
core   +1 more source

High fidelity femtosecond pulses from an ultrafast fiber laser system via adaptive amplitude and phase pre-shaping [PDF]

, 2009
We report the generation of a 12.6W average power, 50MHz repetition rate pulse train, compressible to high fidelity 170fs pulses, from an ultrafast ytterbium-doped fiber laser system via adaptive amplitude and phase pre ...
Shepherd, D.P., Hanna, D.C., Prawiharjo, J., Richardson, D.J., Geng, R., Daga, N.K.   +5 more
core   +2 more sources