Three-photon excitation of quantum dots with a telecom band ultrafast fiber laser [PDF]
, 2014 We demonstrate three-photon excitation in quantum dots with a mode-locked fiber laser operating in the telecommunications band. We compare spectra and intensity dependence of fluorescence from one- and three-photon excitation of commercially available ...
Kielpinski, D. +3 more
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All-Fiber High Efficiency Wavelength-Tunable Mode-Locked Cylindrical Vector Beam Laser
IEEE 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
Dark solitons in mode-locked lasers [PDF]
Optics Letters, 2011 Dark soliton formation in mode-locked lasers is investigated by means of a power-energy saturation model which incorporates gain and filtering saturated with energy, and loss saturated with power. It is found that general initial conditions evolve into dark solitons under appropriate requirements also met in the experimental observations. The resulting
Ablowitz, M.J. +3 more
openaire +5 more sources
Stability calculations for the ytterbium-doped fiber laser passively mode-locked through nonlinear polarization rotation [PDF]
, 2004 We investigate theoretically a fiber laser passively mode-locked with nonlinear polarization rotation. A unidirectional ring cavity is considered with a polarizer placed between two sets of a halfwave plate and a quarterwave plate.
Brunel, Marc +4 more
core +6 more sources
Triple-wavelength fiber ring laser based on a hybrid gain medium actively mode-locked at 10 GHz [PDF]
, 2008 A fiber ring laser based on a hybrid gain medium that produces three simultaneously mode-locked wavelength channels is presented. The lithium niobate based modulator used to actively mode-lock the laser cavity at 10 GHz is birefringence compensated to ...
Anandarajah, Prince M. +4 more
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Graphene Mode-Locked Ultrafast Laser [PDF]
ACS 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
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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 +5 more
doaj +1 more source
Generation of chirp-free picosecond pulses [PDF]
, 1977 The frequency spectrum of moderately chirped laser pulses depends upon the portion of the beam which is accepted by the spectrometer. Observation of the development of the chirp in a mode-locked pulse train allows to determine the small incipient chirp ...
A. Laibereau +23 more
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Diode-Pumped Passively Mode-Locked Tm:
IEEE Photonics Journal, 2015 We report on a diode-pumped passively mode-locked picosecond Tm:CaGdAlO4 (Tm:CALGO) laser using a semiconductor saturable absorber mirror as the mode locker.
Zhipeng Qin +6 more
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Noise characterization of a pulse train generated by actively mode-locked lasers [PDF]
, 1996 We analyze the entire power spectrum of pulse trains generated by a continuously operating actively mode-locked laser in the presence of noise. We consider the effect of amplitude, pulse-shape, and timing-jitter fluctuations that are characterized by ...
Eliyahu, Danny +2 more
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