Filamentation-induced spectral broadening and pulse shortening of infrared pulses in Tellurite glass

Béjot, Pierre; Billard, F.; Peureux, Charles; Diard, Thomas; Picot-Clémente, J.; Strutynski, Clément; Mathey, P.; Mouawad, O.; Faucher, O.; Nagasaka, Kenshiro; Ohishi, Yasutake; Smektala, F.

doi:10.1016/j.optcom.2016.06.003

Cited by 13 publications

(3 citation statements)

References 34 publications

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“…These materials are widely exploited in modern optical fibre technology, however, bulk soft glasses, such as tellurite and chalcogenide, also show very promising results. The SC spectra extending from the visible to 6 μm and from the visible to 4 μm were reported in tellurite glass using the pump pulses with central wavelengths of 1.6 μm [166] and 2.05 μm [167], respectively. A flat SC in the 2.5-7.5 μm range was produced in bulk chalcogenide glass using the pump pulse with a central wavelength of 5.3 μm [168].…”

Section: ]mentioning

confidence: 99%

Ultrafast supercontinuum generation in bulk condensed media

Dubietis¹,

Tamošauskas²,

Šuminas³

et al. 2017

Lith. J. Phys.

172

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Nonlinear propagation of intense femtosecond laser pulses in bulk transparent media leads to a specific propagation regime, termed femtosecond filamentation, which in turn produces dramatic spectral broadening, or superbroadening, termed supercontinuum generation. Femtosecond supercontinuum generation in transparent solids represents a compact, efficient and alignment-insensitive technique for generation of coherent broadband radiation at various parts of the optical spectrum, which finds numerous applications in diverse fields of modern ultrafast science. During recent years, this research field has reached a high level of maturity, both in understanding of the underlying physics and in achievement of exciting practical results. In this paper we overview the state-of-the-art femtosecond supercontinuum generation in various transparent solid-state media, ranging from wide-bandgap dielectrics to semiconductor materials and in various parts of the optical spectrum, from the ultraviolet to the mid-infrared spectral range. A particular emphasis is given to the most recent experimental developments: multioctave supercontinuum generation with pumping in the mid-infrared spectral range, spectral control, power and energy scaling of broadband radiation and the development of simple, flexible and robust pulse compression techniques, which deliver few optical cycle pulses and which could be readily implemented in a variety of modern ultrafast laser systems.

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Section: ]mentioning

confidence: 99%

Ultrafast supercontinuum generation in bulk condensed media

Dubietis¹,

Tamošauskas²,

Šuminas³

et al. 2017

Lith. J. Phys.

172

View full text Add to dashboard Cite

show abstract

“…Controlling this phenomenon (filamentation) can be used to improve the performance of the laser lightning protection devices [3], self channeling and selfguiding laser system [4,5] and etc. The filamentation in various media such as air, water and gases have been heavily studied in recent years [6,7]. The filamentation phenomenon originates from competition between self-focusing and plasma defocusing of an intense laser propagating in Kerr medium [8].…”

Section: Introductionmentioning

confidence: 99%

Influence of non-linearity of medium on the laser induced filamentation instability in magnetized plasma

2018

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The effects of the non-linearity of the medium on the growth rate of filamentation instability in a magnetized plasma interacting with an intense laser pulse, is investigated. The non-linearity of the medium, modeled by Kerr non-linearity, is an important factor, which determines the rate of instability growth. Sensitivity of the rate of filamentation growth, to the Kerr non-linear coefficient could be adjusted by the external magnetic field and laser intensity.

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“…Besides the aforementioned crystals, fluoride, tellurite, lanthanum and chalcogenide glasses also produced broad mid-IR coverage with up to 10 μm [158][159][160][161]. In this section, we report an ultrabroad SCG in KRS-5 and ZnSe with the spectra from 2 to 16 μm and 3 to 14 μm at a pulse energy of 2.4 μJ and 2.5 μJ, respectively, driven by the IPDFG pulses produced in last section.…”

Section: Resultsmentioning

confidence: 80%

Few-cycle broadband mid-IR pulse generation via optical parametric down-conversion

Liu¹

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"300 μJ, 3 W, few-cycle, 3 μm OPCPA based on periodically poled stoichiometric lithium tantalate crystals," Optics Letter 44(11), 2791-2794 (2019). The content of this paper is presented in Chapter 3. Author contributions: H. Liang conceived and designed the experiment. K. Liu and S. Qu made contribution to the early-phase experimental design and developed the seed of the OPCPA system. X. Zou did the OPCPA experiment with the help from W. Li, H. Liang, K. Liu and S. Qu in experimental optimizations, pulse characterization, nonlinear pulse compression and high-harmonic generation. W. Li did the CEP stability measurement.

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Filamentation-induced spectral broadening and pulse shortening of infrared pulses in Tellurite glass

Cited by 13 publications

References 34 publications

Ultrafast supercontinuum generation in bulk condensed media

Ultrafast supercontinuum generation in bulk condensed media

Influence of non-linearity of medium on the laser induced filamentation instability in magnetized plasma

Few-cycle broadband mid-IR pulse generation via optical parametric down-conversion

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