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THEORY OF A RANDOM FIBER LASER
Журнал Экспериментальной и Теоретической Физики, 2014We develop the theory explaining the role of nonlinearity in generation of radiation in a fiber laser that is pumped by external light. The pumping energy is converted into the generating signal due to the Raman scattering supplying an effective gain for the signal.
I. V. Kolokolov +3 more
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Physical Review Letters, 2002
We present an analytical approach to random lasing in a one-dimensional medium, consistent with transfer matrix numerical simulations. It is demonstrated that the lasing threshold is defined by transmission through the passive medium and thus depends exponentially on the size of the system.
A L, Burin +3 more
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We present an analytical approach to random lasing in a one-dimensional medium, consistent with transfer matrix numerical simulations. It is demonstrated that the lasing threshold is defined by transmission through the passive medium and thus depends exponentially on the size of the system.
A L, Burin +3 more
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Random-wavelength solid-state laser
Optics Letters, 2004The spectral properties of a diode-pumped Yb:Y2O3 ceramic laser are reported. We show experimentally that the instantaneous emission wavelengths of the laser change randomly with time, whereas its emission has fixed well-defined transverse modes. The central wavelength of the laser emission also shifts prominently with the increase of intracavity light
J, Kong, D Y, Tang, J, Lu, K, Ueda
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Chaotic Behavior of Random Lasers
2010Light transport in disordered systems can be described as a multiple scattering process in which light waves are multiply scattered by random variations of the refractive index of the material. This has close analogies with other transport phenomena, such as electrons in a conducting material, sounds waves in random structures, and even matter waves. A
WIERSMA, DIEDERIK SYBOLT +5 more
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Amplified Extended Modes in Random Lasers
Physical Review Letters, 2004We report on a new random laser phenomenon that gives rise to narrow emission modes without requiring optical cavities. Sharp emission peaks are observed experimentally over a broad range of scattering strengths and analyzed in numerical calculations.
MUJUMDAR S. +3 more
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Conference on Lasers and Electro-Optics, 2020
Printed random lasers with great versatility, compatibility, and universality can be well adopted by most of the commercial inkjet printers or 3D printers in the mainstream market, promising high application values from lab to fab.
Yi-Zih Chen +3 more
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Printed random lasers with great versatility, compatibility, and universality can be well adopted by most of the commercial inkjet printers or 3D printers in the mainstream market, promising high application values from lab to fab.
Yi-Zih Chen +3 more
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2022
The initial research, on the prospect of building miniaturized high energy efficient lasers, has focused on active random media consisting of dielectric or semiconductor materials. However, research advancements exploiting metallic nanoparticles and nanostructures have found a wide range of applications in laser science from plasmonic random lasers to ...
Naik, Pooja +2 more
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The initial research, on the prospect of building miniaturized high energy efficient lasers, has focused on active random media consisting of dielectric or semiconductor materials. However, research advancements exploiting metallic nanoparticles and nanostructures have found a wide range of applications in laser science from plasmonic random lasers to ...
Naik, Pooja +2 more
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Frontiers in Optics 2004/Laser Science XXII/Diffractive Optics and Micro-Optics/Optical Fabrication and Testing, 2004
We demonstrate two-threshold random laser emission in the mixtures of GaAs powder with Al2O3 powder. The dilution of GaAs powder with Al2O3 powder helps to maximize the output efficiency of the stimulated emission.
M A Noginov, G Zhu, I Fowlkes, M Bahoura
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We demonstrate two-threshold random laser emission in the mixtures of GaAs powder with Al2O3 powder. The dilution of GaAs powder with Al2O3 powder helps to maximize the output efficiency of the stimulated emission.
M A Noginov, G Zhu, I Fowlkes, M Bahoura
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Beta factor in a random laser.
Physical review. E, Statistical, nonlinear, and soft matter physics, 2002We develop a definition for the beta factor, the fraction of spontaneous emission that seeds the laser process, for a random laser. With the wavelength-dependence of the gain (and potentially scattering) being the only possible criterion in the competition between gain and loss, our concept of beta is based on the spectral properties of the spontaneous
van Soest, G., Lagendijk, A.
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IET International Conference on Information Science and Control Engineering 2012 (ICISCE 2012), 2012
The random distributed feedback (RDFB) fibre laser that provides stable, spatially incoherent continuous-wave lasing has been proved. It generates the distributed feedback fibre cavity which is formed by the Rayleigh backscattering in the fibre, and its gain is achieved by Raman amplification when the pump light enters into fibre, and its efficiency ...
L.L. Chen, Y.C. Ding, R.X. Teng
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The random distributed feedback (RDFB) fibre laser that provides stable, spatially incoherent continuous-wave lasing has been proved. It generates the distributed feedback fibre cavity which is formed by the Rayleigh backscattering in the fibre, and its gain is achieved by Raman amplification when the pump light enters into fibre, and its efficiency ...
L.L. Chen, Y.C. Ding, R.X. Teng
openaire +1 more source