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Proceedings Paper

Methods for compensation of thermal lensing based on thermo-optical (TOP) analysis
Author(s): Alexander Gatej; Peter Loosen
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Paper Abstract

The compensation of thermal lensing in laser optics for application in the high power domain is an up-to-date topic and discussed in literature multiple times. This paper combines distinct published approaches with own contributions to enhance current methodologies for the simulation, the measurement and the compensation of thermally induced optical effects. Particularly, a thermal time constant is introduced to characterize the time until steady state is reached. Moreover, a metrological setup is described for thermal lens measurement at high power. Finally, methods for thermal lens compensation and material data acquisition are discussed on the basis of an experimental example.

Paper Details

Date Published: 1 May 2014
PDF: 8 pages
Proc. SPIE 9131, Optical Modelling and Design III, 91310F (1 May 2014); doi: 10.1117/12.2052203
Show Author Affiliations
Alexander Gatej, RWTH Aachen (Germany)
Peter Loosen, RWTH Aachen (Germany)
Fraunhofer-Institut für Lasertechnik (Germany)

Published in SPIE Proceedings Vol. 9131:
Optical Modelling and Design III
Frank Wyrowski; John T. Sheridan; Jani Tervo; Youri Meuret, Editor(s)

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