Results 11 to 20 of about 41,965 (302)

Mode-locking of lasers

open access: yesPhotoniques, 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   +3 more
openaire   +3 more sources

Passively Mode-Locked Raman Laser [PDF]

open access: yesPhysical Review Letters, 2010
We report on the observation of a novel mode locked optical comb generated at the Raman offset (Raman comb) in an optically pumped crystalline whispering gallery mode resonator. Mode locking is confirmed via measurement of the radio-frequency beat note produced by the optical comb on a fast photodiode.
Liang, W.   +5 more
openaire   +3 more sources

Spatiotemporally mode-locked soliton fiber laser at 2.8 μm

open access: yesHigh Power Laser Science and Engineering, 2023
Spatiotemporal mode-locking creates great opportunity for pulse energy scaling and nonlinear optics research in fiber. Until now, spatiotemporal mode-locking has only been realized in normal-dispersion dissipative soliton and similariton fiber lasers. In
Ying’an Chen   +6 more
doaj   +1 more source

Optical Frequency Synthesis Based on Mode-Locked Lasers [PDF]

open access: yes, 2001
The synthesis of optical frequencies from the primary cesium microwave standard has traditionally been a difficult problem due to the large disparity in frequency.
Cundiff, Steven T.   +2 more
core   +3 more sources

Output power limitations and improvements in passively mode locked GaAs/AlGaAs quantum well lasers [PDF]

open access: yes, 2012
We report a novel approach for increasing the output power in passively mode locked semiconductor lasers. Our approach uses epitaxial structures with an optical trap in the bottom cladding that enlarges the vertical mode size to scale the pulse ...
Bryce, A.C.   +3 more
core   +1 more source

Highly stable MXene (V2CTx)-based harmonic pulse generation

open access: yesNanophotonics, 2020
MXene as a novel two-dimensional (2D) material exhibits a lot of advantages in nonlinear optics. However, the common MXene, Ti3C2Tx and Ti2CTx nanosheets, easily suffer from degradation under ambient conditions, greatly limiting their practical ...
Huang Weichun   +8 more
doaj   +1 more source

Effects of Power Split Ratio and Optical Delay Phase Tuning on Stabilization of Self-Mode-Locked Quantum-Dash Lasers Subject to Dual-Loop Optical Feedback

open access: yesIEEE Photonics Journal, 2020
In the present work, we report a path of RF stabilization versus delay subject to self-mode-locked (SML) two-section quantum-dash (QDash) lasers emitting at ∼1.55 μm and operating at ∼21 GHz repetition rate using a feedback ...
Haroon Asghar, John G. McInerney
doaj   +1 more source

2 μm passively mode-locked thulium-doped fiber lasers with Ta2AlC-deposited tapered and side-polished fibers

open access: yesScientific Reports, 2021
In this work, mode-locked thulium-doped fiber lasers operating in the 2 µm wavelength region were demonstrated using tantalum aluminum carbide (Ta2AlC)-based saturable absorbers (SAs) utilizing the evanescent wave interaction.
H. Ahmad   +5 more
doaj   +1 more source

Noise in Passively Mode-Locked Lasers [PDF]

open access: yes, 1998
For the first time, phase fluctuations in the spectral intensity of the pulse train generated by passively mode-locked semiconductor lasers have been measured. The results reveal diffusion-like fluctuations of this phase.
Eliyahu, D., Yariv, A.
core   +1 more source

Broadband saturable absorption in germanene for mode-locked Yb, Er, and Tm fiber lasers

open access: yesNanophotonics, 2022
Passively mode-locked lasers have been widely investigated as one of the effective methods to obtain ultrashort pulses. As an important part of passively mode-locked fiber lasers, the exploration of 2D material-based saturable absorber has become one of ...
Wang Qingbo   +7 more
doaj   +1 more source

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