Population lensing vs thermal lensing in Yb:YAG rods and disks

E.A. Anashkina, O.L. Antipov, K.A. Fedorova

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

The induced lenses in the Yb:YAG rods and disks end-pumped by a Gaussian beam were analyzed both analytically and numerically. The thermally assisted mechanisms of the lens formation were considered to include: the conventional volume thermal index changes ("dn/dT"), the bulging of end faces, the photoelastic effect, and the bending (for a disk). The heat conduction equations (with an axial heat flux for a disk and a radial heat flux for a rod), and quasi-static thermoelastic equations (in the plane-stress approximation with free boundary conditions) were solved to find the thermal lens power. The population rate equation with saturation (by amplified spontaneous emission or an external wave) was examined to find the electronic lens power in the active elements.
Original languageEnglish
Title of host publicationEuropean Conference on Lasers and Electro-Optics 2009 and the European Quantum Electronics Conference. CLEO Europe - EQEC 2009
PublisherIEEE
ISBN (Electronic)978-1-4244-4080-1
ISBN (Print)978-1-4244-4079-5
DOIs
Publication statusPublished - 2009

Fingerprint

thermal lensing
yttrium-aluminum garnet
rods
lenses
heat flux
bulging
plane stress
free boundaries
conductive heat transfer
spontaneous emission
boundary conditions
saturation
approximation
electronics

Cite this

Anashkina, E. A., Antipov, O. L., & Fedorova, K. A. (2009). Population lensing vs thermal lensing in Yb:YAG rods and disks. In European Conference on Lasers and Electro-Optics 2009 and the European Quantum Electronics Conference. CLEO Europe - EQEC 2009 IEEE. https://doi.org/10.1109/CLEOE-EQEC.2009.5194781
Anashkina, E.A. ; Antipov, O.L. ; Fedorova, K.A. / Population lensing vs thermal lensing in Yb:YAG rods and disks. European Conference on Lasers and Electro-Optics 2009 and the European Quantum Electronics Conference. CLEO Europe - EQEC 2009. IEEE, 2009.
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Anashkina, EA, Antipov, OL & Fedorova, KA 2009, Population lensing vs thermal lensing in Yb:YAG rods and disks. in European Conference on Lasers and Electro-Optics 2009 and the European Quantum Electronics Conference. CLEO Europe - EQEC 2009. IEEE. https://doi.org/10.1109/CLEOE-EQEC.2009.5194781

Population lensing vs thermal lensing in Yb:YAG rods and disks. / Anashkina, E.A.; Antipov, O.L.; Fedorova, K.A.

European Conference on Lasers and Electro-Optics 2009 and the European Quantum Electronics Conference. CLEO Europe - EQEC 2009. IEEE, 2009.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

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Anashkina EA, Antipov OL, Fedorova KA. Population lensing vs thermal lensing in Yb:YAG rods and disks. In European Conference on Lasers and Electro-Optics 2009 and the European Quantum Electronics Conference. CLEO Europe - EQEC 2009. IEEE. 2009 https://doi.org/10.1109/CLEOE-EQEC.2009.5194781