Results 11 to 20 of about 41,398 (301)

Graphene Mode-Locked Ultrafast Laser [PDF]

open access: yesACS Nano, 2010
Graphene is at the center of a significant research effort. Near-ballistic transport at room temperature and high mobility make it a potential material for nanoelectronics. Its electronic and mechanical properties are also ideal for micro and nanomechanical systems, thin-film transistors and transparent and conductive composites and electrodes. Here we
Sun Z   +8 more
openaire   +5 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

Optically injected mode-locked laser

open access: yesPhysical Review E, 2011
We study analytically and numerically a delay differential model of a passively mode-locked semiconductor laser subjected to a single frequency coherent injection. The width of the locking cone is calculated asymptotically in the limit of small injection and compared to that obtained by direct numerical integration of the model equations.
Rachinskii, Dmitrii   +3 more
openaire   +3 more sources

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

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

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

Phase-locking characteristics of coupled ridge-waveguide InP/InGaAsP diode lasers [PDF]

open access: yes, 1984
The phase-locking characteristics of two coupled, ridge waveguide InP/InGaAsP diode lasers emitting at 1.2 µm were investigated experimentally. The phase locking of the lasers was verified by the observation of phase-locked modes (supermodes) in the ...
Kapon, E.   +5 more
core   +1 more source

Kerr-Lens Mode-locked Cr:ZnS Laser [PDF]

open access: yesLasers, Sources, and Related Photonic Devices, 2012
We report the soft-aperture Kerr-lens mode-locked Cr:ZnS laser, generating 550 mW of 69 fs nearly transform-limited pulses at 2.39 μm wavelength. The pulse energy reached 3.8 nJ at 145 MHz repetition rate, limited by the onset of double-pulsing. This corresponds to the shortest-pulse and highest-energy direct femtosecond laser source in the mid ...
Tolstik, Nikolai   +2 more
openaire   +3 more sources

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