Results 251 to 260 of about 88,499 (309)
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Scaling of the antiresonant Fabry–Perot saturable absorber design toward a thin saturable absorber
Optics Letters, 1995We demonstrate and discuss the scaling of the antiresonant Fabry-Perot saturable absorber toward a novel antiref lection-coated thin saturable absorber. With a Ti:sapphire laser we obtained self-starting Kerr-lens mode-locked pulses as short as 19 fs. With the higher modulation depth of the thin saturable absorber we obtained soliton mode-locked self ...
Jung, I.D. +4 more
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Broadband fast semiconductor saturable absorber
Optics Letters, 1992Kerr lens mode-locked (KLM) solid-state lasers are typically not self-starting. We address this problem by introducing a broadband semiconductor saturable absorber that could be used as a tunable, all-solid-state, passive starting mechanism. We extend the wavelength tunability of a semiconductor saturable absorber to more than 100 nm using a band-gap ...
G R, Jacobovitz-Veselka +2 more
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Rubrene, a saturable absorber for 308 nm
Optics Communications, 1988Abstract The use of the 1 A- 1 B b transition in catacondensed polycyclic aromatic hydrocarbons for the saturable absorption by excimer laser pulses is suggested. The saturation characteristics of rubrene (in benzene solution) for sub-ps XeCl ∗ laser pulses are reported. Numerical calculations which include excited state absorption are presented.
Kaschke, M., Ernsting, N., Schäfer, F.
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Study of Saturable Absorber Switching Efficiencies
Journal of Applied Physics, 1969Theoretical and experimental studies of absorber switching efficiencies are described for a ruby laser operating at 77°K. The various operating regimes of absorber-switched lasers are reviewed and the importance of inclusion in the theory of nonsaturable losses associated with the laser and absorber media is demonstrated.
Szabo, A., Erickson, L. E.
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Inhomogeneously broadened laser with a saturable absorber
Physical Review A, 1987A quantum theory for a laser with inhomogeneously broadened active and absorber atoms is presented. Photon-number distributions are derived for both on- and off-resonance operation of the laser, and the results are compared with the results of earlier investigations.
, Mortazavi, , Singh
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Tricritical behavior in the laser with a saturable absorber
Physical Review Letters, 1990Nonequilibrium continuous and discontinuous phase transitions in the laser with a saturable absorber have been observed. A novel feature of these measurements is the observation of the tricritical behavior. The adequacy of the perturbative approach to describe saturation effects is discussed in light of these measurements.
, Mortazavi, , Singh
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Stochastic resonance in a laser with saturable absorber
Il Nuovo Cimento D, 1995We have investigated, experimentally and theoretically, the occurrence of stochastic resonance (SR) in a laser with saturable absorber: a non-linear optical system presenting optical bistability and self-pulsed regimes for the laser output intensity. In the optical-bistability regime we have obtained an excellent demonstration of SR by studying Fourier
GUIDONI L +4 more
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Journal of Applied Physics, 2016
Fully microscopic many-body calculations are used to study the influence of strong sub-picosecond pulses on the carrier distributions and corresponding optical response in saturable absorbers used for mode-locking—semiconductor (quantum well) saturable absorber mirrors (SESAMs) and single layer graphene based saturable absorber mirrors (GSAMs).
J. Hader +4 more
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Fully microscopic many-body calculations are used to study the influence of strong sub-picosecond pulses on the carrier distributions and corresponding optical response in saturable absorbers used for mode-locking—semiconductor (quantum well) saturable absorber mirrors (SESAMs) and single layer graphene based saturable absorber mirrors (GSAMs).
J. Hader +4 more
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Structure of chaos in the laser with saturable absorber
Physical Review Letters, 1992We carry out a topological analysis on an experimental data set from the laser with saturable absorber. This analysis is based on the topological organization of low period orbits extracted from chaotic time series data. This allows us to determine for the first time that previously proposed models are compatible with the ...
, Papoff +5 more
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Single-mode-fiber saturable absorber
Optics Letters, 1984Saturable absorption is performed on a signal in a single-mode fiber by allowing the evanescent field of the guided wave to interact with a saturable-absorbing dye. The evanescent field is exposed by mechanically removing a portion of the fiber cladding. The saturable material is then placed in close proximity to the fiber core.
W V, Sorin +3 more
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