Results 41 to 50 of about 3,978,037 (339)

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

open access: yesFrontiers 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   +13 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

Iteratively seeded mode-locking

open access: yesOptics 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.   +3 more
openaire   +3 more sources

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

MXene-based saturable absorber for femtosecond mode-locked fiber lasers.

open access: yesOptics Express, 2019
We report simple and compact all-fiber erbium-doped soliton and dispersion-managed soliton femtosecond lasers mode-locked by the MXene Ti3C2Tx. A saturable absorber device fabricated by optical deposition of Ti3C2Tx onto a microfiber exhibits strong ...
Qiang Wu   +10 more
semanticscholar   +1 more source

Pulse forming in an AM mode-locking hybrid TEA-CO2 laser [PDF]

open access: yes, 1986
We performed an experimental study on the pulse forming mechanism in an AM mode-locked hybrid TEA-CO2 laser by means of “injection mode-locking”. The results show that bandwidth limited pulses will only be reached within a small - critical - range of ...
Bonnie, R.J.M., Goor, F.A. van
core   +4 more sources

Mode-locking of mobile discrete breathers [PDF]

open access: yesPhysical Review E, 2005
We study numerically synchronization phenomena of mobile discrete breathers in dissipative nonlinear lattices periodically forced. When varying the driving intensity, the breather velocity generically locks at rational multiples of the driving frequency.
Zueco, D.   +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

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

PT-symmetric mode-locking [PDF]

open access: yesOptics 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

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