Journal ArticleDOI
Π-pulse propagation in the presence of host dispersion
J. Armstrong,E. Courtens +1 more
TLDR
In this paper, a steady-state solution for a homogeneously broadened laser amplifier embedded in a dispersive lossy host is found. But the model of dispersion in the host group velocity causes a large frequency sweep during the pulse.Abstract:
A steady-state solution describing \Pi -pulse propagation in a homogeneously broadened laser amplifier embedded in a dispersive lossy host is found. For a given model of dispersion, the solution satisfies exactly the second-order wave equation together with the equations of motion for the density matrix of the two-level resonant system. The salient feature of the solution is that a small amount of dispersion in the host group velocity causes a large monotonic frequency sweep during the pulse. The effects of this chirp on the pulse properties are described in detail, and the relation of the theory to experiments is discussed.read more
Citations
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Journal ArticleDOI
FM and AM mode locking of the homogeneous laser - Part I: Theory
D. Kuizenga,Anthony E. Siegman +1 more
TL;DR: In this article, a complex Gaussian pulse is followed through one pass around the laser cavity to keep the pulse Gaussian, and the analysis is further extended to include effects of detuning of the modulator, in which case analytical expressions are obtained for the phase shift of the pulse within the modulation cycle, the shift of pulse spectrum off line center, the change in pulse length, and change in power output.
Journal ArticleDOI
Ultrashort-Pulse Generation by Q -Switched Lasers
TL;DR: In this paper, a complete temporal description of pulsed emission by a homogeneously broadened laser, including the effects of spontaneous emission, the detailed geometry of the laser cavity, and the variation of atomic polarization and level populations over wavelength distances are treated by means of expansions in spatial Fourier series.
Journal ArticleDOI
Study of the Nd: Glass laser radiation
TL;DR: In this paper, the authors studied the time and spectral structure of the Nd:glass laser radiation using two-photon fluorescence (TPF) patterns, and found that the TPF patterns were consistent with a model where the laser emission has the character of Gaussian noise (thermal light), i.e., a case where the modes are randomly phased.
Journal ArticleDOI
Multiple phase-coherent laser pulses in optical spectroscopy. I. The technique and experimental applications
Warren S. Warren,Ahmed H. Zewail +1 more
TL;DR: In this paper, the effects of intense pulse trains on systems with only two resonant energy levels are analyzed, with particular attention to the effect of extreme inhomogeneous broadening and population depletion to nonresonant levels.
Journal ArticleDOI
Optical density effects in photon echo experiments
TL;DR: In this paper, the effects of optical density on photon echo experiments were examined both theoretically and experimentally, and it was suggested that the difference between T2 and 2T1 is due to the static multiplet level structure arising from the electronic state-phonon coupling.
References
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Journal ArticleDOI
Theory of Pulse Propagation in a Laser Amplifier
Lee M. Frantz,John S. Nodvik +1 more
TL;DR: In this paper, the growth of a radiation pulse traversing a medium with an inverted population is described by nonlinear, time-dependent photon transport equations, which account for the effect of the radiation on the medium as well as vice versa.
Journal ArticleDOI
Geometrical Representation of the Schrödinger Equation for Solving Maser Problems
TL;DR: In this article, a geometrical representation for the Schrodinger equation is developed to describe the behavior of an ensemble of two quantum-level, noninteracting systems which are under the influence of a perturbation.
Journal ArticleDOI
Compression of picosecond light pulses
TL;DR: The ultrashort pulses generated by a Nd:glass laser have frequency swept carriers and can therefore be compressed by a pair of gratings to a length much closer to the reciprocal of the bandwidth as discussed by the authors.
Journal ArticleDOI
Theory of optical maser amplifiers
F. Arecchi,R. Bonifacio +1 more
TL;DR: In this paper, the steady state pulse (S. S. P) introduced by Wittke and Warter for T 2 /T 1 = 0 is generalized for T2/T 1 /ε = 0 and it is shown to propagate at the same velocity of the light in the medium.
Journal ArticleDOI
Compression of optical pulses
TL;DR: In this paper, a scheme was proposed to compress in time, without loss of energy, the light pulse generated by a mode-locked He-Ne laser and a LiNbO 3 phase modulator.