Results 31 to 40 of about 76,249 (282)

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

open access: yesIEEE 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   +5 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

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

open access: yesIEEE 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   +6 more
doaj   +1 more source

Multi-wavelength, all-solid-state, continuous wave mode locked picosecond Raman laser [PDF]

open access: yes, 2010
We demonstrate the operation of a cascaded continuous wave (CW) mode-locked Raman oscillator. The output pulses were compressed from 28 ps at 532 nm down to 6.5 ps at 559 nm (first Stokes) and 5.5 ps at 589 nm (second Stokes).
Basiev   +14 more
core   +1 more source

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

open access: yesPhotoniX, 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   +3 more
doaj   +1 more source

All-Fiber High Efficiency Wavelength-Tunable Mode-Locked Cylindrical Vector Beam Laser

open access: yesIEEE Photonics Journal, 2022
A wavelength-tunable mode-locked cylindrical vector beam (CVB) fiber laser with a dumbbell-shaped structure was proposed and demonstrated experimentally.
Yuan Lu, Peijun Yao
doaj   +1 more source

Mode-Locked Two-Photon States

open access: yes, 2003
The concept of mode locking in laser is applied to a two-photon state with frequency entanglement. Cavity enhanced parametric down-conversion is found to produce exactly such a state.
A. E. Siegman   +4 more
core   +1 more source

Pulse characteristics of passively mode-locked diode lasers [PDF]

open access: yes, 1995
For the first time to our knowledge, asymmetric pulse shapes and the linear and nonlinear chirp from a passively mode-locked semiconductor laser are directly measured.
Salvatore, Randal A.   +2 more
core   +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

Irrational mode locking in quasiperiodic systems [PDF]

open access: yes, 2007
A model for ac-driven systems, based on the Tang-Wiesenfeld-Bak-Coppersmith-Littlewood automaton for an elastic medium, exhibits mode-locked steps with frequencies that are irrational multiples of the drive frequency, when the pinning is spatially ...
A. Alan Middleton   +2 more
core   +3 more sources

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