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

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

doi:10.1109/CLEOE-EQEC.2009.5194781

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

E. A. Anashkina, O. L. Antipov (Lead / Corresponding author), K. A. Fedorova

Research output: Chapter in Book/Report/Conference proceeding › Conference 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 language	English
Title of host publication	CLEO/Europe - EQEC 2009 - European Conference on Lasers and Electro-Optics and the European Quantum Electronics Conference
Number of pages	1
ISBN (Electronic)	978-1-4244-4080-1
DOIs	https://doi.org/10.1109/CLEOE-EQEC.2009.5194781
Publication status	Published - 14 Jun 2009
Event	2009 European Conference on Lasers and Electro-Optics and the 11th European Quantum Electronics Conference - ICM Center of the New Munich Trade Fair Centre, Munich, Germany Duration: 14 Jun 2009 → 19 Jun 2009 http://2009.cleoeurope.org/

Conference

Conference	2009 European Conference on Lasers and Electro-Optics and the 11th European Quantum Electronics Conference
Abbreviated title	CLEO/Europe - EQEC 2009
Country/Territory	Germany
City	Munich
Period	14/06/09 → 19/06/09
Internet address	http://2009.cleoeurope.org/

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10.1109/CLEOE-EQEC.2009.5194781

http://www.opticsinfobase.org/abstract.cfm?URI=CLEO/Europe-2009-CA_P19

Cite this

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title = "Population lensing vs thermal lensing in Yb:YAG rods and disks",

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.",

author = "Anashkina, {E. A.} and Antipov, {O. L.} and Fedorova, {K. A.}",

year = "2009",

month = jun,

day = "14",

doi = "10.1109/CLEOE-EQEC.2009.5194781",

language = "English",

isbn = " 978-1-4244-4079-5",

booktitle = "CLEO/Europe - EQEC 2009 - European Conference on Lasers and Electro-Optics and the European Quantum Electronics Conference",

note = "2009 European Conference on Lasers and Electro-Optics and the 11th European Quantum Electronics Conference, CLEO/Europe - EQEC 2009 ; Conference date: 14-06-2009 Through 19-06-2009",

url = "http://2009.cleoeurope.org/",

}

Anashkina, EA, Antipov, OL & Fedorova, KA 2009, Population lensing vs thermal lensing in Yb:YAG rods and disks. in CLEO/Europe - EQEC 2009 - European Conference on Lasers and Electro-Optics and the European Quantum Electronics Conference. 2009 European Conference on Lasers and Electro-Optics and the 11th European Quantum Electronics Conference, Munich, Germany, 14/06/09. https://doi.org/10.1109/CLEOE-EQEC.2009.5194781

TY - GEN

T1 - Population lensing vs thermal lensing in Yb:YAG rods and disks

AU - Anashkina, E. A.

AU - Antipov, O. L.

AU - Fedorova, K. A.

PY - 2009/6/14

Y1 - 2009/6/14

N2 - 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.

AB - 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.

U2 - 10.1109/CLEOE-EQEC.2009.5194781

DO - 10.1109/CLEOE-EQEC.2009.5194781

M3 - Conference contribution

SN - 978-1-4244-4079-5

BT - CLEO/Europe - EQEC 2009 - European Conference on Lasers and Electro-Optics and the European Quantum Electronics Conference

T2 - 2009 European Conference on Lasers and Electro-Optics and the 11th European Quantum Electronics Conference

Y2 - 14 June 2009 through 19 June 2009

ER -

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

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