Shack-Hartmann wavefront sensor measurement for dynamic temperature profiles in heat-capacity laser rods.

Shack-Hartmann wavefront sensor measurement for dynamic temperature profiles in heat-capacity laser rods. Research Abstract Details 

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Shack-Hartmann wavefront sensor measurement for dynamic temperature profiles in heat-capacity laser rods. Abstract Text:

Xiaobo Wang,Xiaojun Xu,Qisheng Lu,Fengjie Xi,Xiaobo Wang,Xiaojun Xu,Qisheng Lu,Fengjie Xi,

A Shack-Hartmann sensor nonintrusive measurement for the temperature profile in a heat-capacity neodymium-doped glass rod is proposed. This technique is possible because the optical path length of the rod changes with temperature linearly over a wide range. The temperature change of the solid-state laser rod is often recorded by using a thermocouple, thermal camera, or phase-shifting interferometer. Based on an analysis of temperature-induced changes in length and index of refraction, we can get the temperature profiles from the wavefront reconstructions in real time. The results suggest the Shack-Hartmann sensors could replace microbolometer-based thermal cameras and phase-shifting interferometers for dynamic temperature profiles in heat-capacity laser rods with particular advantages. A strange temperature chaos of the Nd:glass rod just after the pump cycle is discovered.

Shack-Hartmann wavefront sensor measurement for dynamic temperature profiles in heat-capacity laser rods. Publishing Authors By Initials

X Wang,X Xu,Q Lu,F Xi,X Wang,X Xu,Q Lu,F Xi,

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Shack-Hartmann wavefront sensor measurement for dynamic temperature profiles in heat-capacity laser rods. Journal Published:

PUBLICATION TYPE: Journal Article

Journal: Applied optics

VOLUME: 46

Page Numbers: 2963-8

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ISSN: 0003-6935

DAY: 20

MONTH: May

YEAR: 2007

Shack-Hartmann wavefront sensor measurement for dynamic temperature profiles in heat-capacity laser rods. Information

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LANGUAGE: eng

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Grant and Affiliation Information for Shack-Hartmann wavefront sensor measurement for dynamic temperature profiles in heat-capacity laser rods.

AFFILIATION: Department 203, Optoelectronic Science and Engineering College, National University of Defense Technology,Changsha, 410073, China. xiaobowang1982@yahoo.com.cn

Country: United States

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MEDLINETA: Appl Opt

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