&lt;title&gt;Flashlamp-pumped Yb-laser for an average-power operation&lt;/title&gt;

Burtsev, A. V.; Senatsky, Yuri V.; Feoktistov, L. P.; Durmanov, S. T.; Rudnitsky, Yu. V.; Smirnov, G. V.

doi:10.1117/12.238093

Cited by 1 publication

(1 citation statement)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The thermal lens in Nd:YAG rod was reduced by more than an order of magnitude when it was cooled by liquid nitrogen [38]. For Yb:YAG active medium it is of importance several times decrease in the thermal population density of Yb ions at the lower level of the main 1.03 µm laser transition with the corresponding increase of the inversion and decrease of the requested pump flux density [39].Also the increase of the stimulated emission cross-section of Yb:YAG at low temperatures [40] The expected levels of beam small-scale self-focusing in different active media may be compared with the help of "intrinsic" increments of the growth of perturbations, which may arise at typical for a given material operating flux densities. These increments, B i max were estimated for the conditions when a laser pulse with the duration of τ ≈ 1 ns and the energy density of hω/σ (which is equal to the laser transition saturation fluence) propagates through a medium.…”

Section: Feasibility Of the Usage Of Ceramic Materials For The Laser-...mentioning

confidence: 99%

Nonlinear refractive index of ceramic laser media and perspectives of their usage in a high-power laser-driver

et al. 2004

View full text Add to dashboard Cite

At the recent years a technology of ceramic laser media on the base of crystals with a cubic symmetry has been developed. The perspective of the usage of ceramic materials in many different applications including high - power short pulse lasers stimulates the work on the systematic study of the properties of these new laser media. A nonlinear refractive index, n2 was studied for several garnet and sesquioxide laser ceramics using Z-scan method. n2 indices in the range of (2-6) × 10-13 were measured for YAG, Y2O3, Lu2O3, and Sc2O3 ceramic samples. These data together with the other laser and spectroscopic parameters of several Nd3+ and Yb3+ doped crystals of a cubic symmetry were used to estimate the properties of laser ceramics for the application in a high-power pulsed-repetitive laser - driver for inertial confinement fusion (ICF) program. A high heat conductivity of ceramic materials is a profitable characteristic for this application as compared to glasses, which are used now for experiments in ICF at single shots regime. Compared to single crystals, ceramic elements provide laser designers with a variety of new design options for the projects of laser-drivers.

show abstract

Section: Feasibility Of the Usage Of Ceramic Materials For The Laser-...mentioning

confidence: 99%