Results 31 to 40 of about 1,871,253 (213)

Sub-100 fs watt-level Kerr-lens mode-locked Yb:CaYAlO4 laser with a gigahertz repetition rate

Frontiers in Physics, 2023
We report a 1.04 GHz high-power Kerr-lens mode-locked Yb:CaYAlO4 laser pumped by a single-mode fiber laser at 976 nm. Based on a bow-tie cavity, stable unidirectional mode-locked operation is obtained with an output coupler of 1.6%.
Ziyue Zhang, Ziyue Zhang, Junyi Ma, Guodong Zhao, Xiaodong Shao, Yunzhong Zheng, Hainian Han, Hainian Han, Zhiyi Wei, Zhiyi Wei   +9 more
doaj   +1 more source

InP/InGaP quantum-dot SESAM mode-locked Alexandrite laser [PDF]

, 2018
A semiconductor saturable absorber mirror (SESAM) passively mode-locked Alexandrite laser was demonstrated. Using an InP/InGaP quantum-dot saturable absorber mirror, pulse duration of 420 fs at 774 nm was obtained.
Major, Arkady, Krysa, Andrey B., Rafailov, Edik U., Fedorova, Ksenia A., Ghanbari, Shirin   +4 more
core   +1 more source

Graphdiyne for Ultrashort Pulse Generation in an Erbium-Doped Hybrid Mode-Locked Fiber Laser

Frontiers in Physics, 2019
An erbium-doped hybrid passively mode-locked fiber laser based on few-layer graphdiyne (GDY) saturable absorber (SA) has been investigated for the first time. Hybrid mode-locked fiber laser is composed of non-linear polarization rotation (NPR) technology
Zhaojiang Shi, Zhaojiang Shi, Xiaohui Li, Xiaohui Li, Yani Zhang, Yani Zhang, Hongqi Li, Hongqi Li, Yang Zhao, Yang Zhao, Penglai Guo, Penglai Guo, Yixuan Guo, Yixuan Guo   +13 more
doaj   +1 more source

Mode-locking of lasers

Photoniques, 2023
Mode-locked lasers are the fundamental source of ultrashort and ultraintense light pulses and a principal pathway for three Nobel Prize technologies: optical frequency combs, chirped pulse amplification, and attosecond light pulses. They are essential in routine and high-level applications such as refractive surgery, spectroscopy, or metrology.
Prati, Franco, Perego, Auro M., Barland, Stephane, De Valcárcel, Germán J.   +3 more
openaire   +3 more sources

Theoretical Comparison of NPR and Hybrid Mode-Locked Soliton Thulium-Doped Fiber Lasers

IEEE Photonics Journal, 2017
The evolutions and properties of solitons in a thulium-doped fiber laser hybrid mode-locked by the coaction of nonlinear polarization rotation (NPR) and a semiconductor saturable absorber mirror (SESAM) have been numerically investigated.
Yanjia Lyu, Jianfeng Li, Yunxiao Hu, Yazhou Wang, Chen Wei, Yong Liu   +5 more
doaj   +1 more source

PT-symmetric mode-locking [PDF]

Optics Letters, 2016
Parity-time (PT) symmetry is one of the most important accomplishments in optics over the past decade. Here the concept of PT mode-locking (ML) of a laser is introduced, in which active phase-locking of cavity axial modes is realized by asymmetric mode coupling in a complex time crystal. PT ML shows a transition from single- to double-pulse emission as
openaire   +2 more sources

Iteratively seeded mode-locking

Optics Express, 2017
Ultrashort pulsed mode-locked lasers enable research at new time-scales and revolutionary technologies from bioimaging to materials processing. In general, the performance of these lasers is determined by the degree to which the pulses of a particular resonator can be scaled in energy and pulse duration before destabilizing.
Bucklew, Victor G., Renninger, William H., Edwards, Perry S., Liu, Zhiwen   +3 more
openaire   +3 more sources

A Dual-Wavelength Rational Harmonic Mode-Locked Fiber Ring Laser With Different Repetition Frequencies

IEEE Photonics Journal, 2015
A dual-wavelength rational harmonic mode-locked fiber ring laser with different repetition frequencies is theoretically analyzed and experimentally demonstrated.
Yuejiao Zi, Yang Jiang, Chuang Ma, Guangfu Bai, Zhenrong Jia, Tingwei Wu, Fengqin Huang   +6 more
doaj   +1 more source

Ultrafast dissipative soliton generation in anomalous dispersion achieving high peak power beyond the limitation of cubic nonlinearity

PhotoniX, 2023
The maximum peak power of ultrafast mode-locked lasers has been limited by cubic nonlinearity, which collapses the mode-locked pulses and consequently leads to noisy operation or satellite pulses.
Jinhwa Gene, Seung Kwan Kim, Sun Do Lim, Min Yong Jeon   +3 more
doaj   +1 more source

Passively mode-locked diode-pumped surface-emitting semiconductor laser

, 2000
A surface-emitting semiconductor laser has been passively mode locked in an external cavity incorporating a semiconductor saturable absorber mirror. The gain medium consists of a stack of 12 InGaAs-GaAs strained quantum wells, grown above a Bragg mirror ...
Tropper, A.C., Morier-Genoud, F., F. Morier-Genoud, J. S. Roberts, Roberts, J.S., Garnache, A., A. C. Tropper, Keller, U., Paschotta, R., A. Garnache, Oesterle, U., S. Dhanjal, U. Oesterle, Dhanjal, S., Häring, R., R. Häring, R. Paschotta, S. Hoogland, U. Keller, Hoogland, S.   +19 more
core   +1 more source