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Advanced shearographic system for nondestructive testing of industrial and artwork components
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Paper Abstract

The diode laser transversal pump coupling technology is studied in the paper. A transversal pumped laser slab is excited by diodes coupled an optical system or the fiber cylindrical lens. A high efficiency can be reached by matching of the pump light distribution to the desired mode volume and almost complete by absorpting the pump light. We have achieved nearly 20 mrad divergence in the fast axis with the fiber cylindrical lens coupling of the diode laser bar .The beam quality of the emitter of the diode laser arrays in the two axis is very different. The radiation of the emitters is transformed by the lens duct. The experimental results show that the efficiency of the optical coupling is 85%,and an output beam with a symmetry profile has been achieved in the output face of the lens duct.

Paper Details

Date Published: 12 September 2002
PDF: 11 pages
Proc. SPIE 4915, Lasers in Material Processing and Manufacturing, (12 September 2002); doi: 10.1117/12.482923
Show Author Affiliations
Michael K. Kalms, Bremer Institute of Applied Beam Technology (Germany)
Wolfgang Osten, Bremer Institute of Applied Beam Technology (Germany)
Werner P. O. Jueptner, Bremer Institute of Applied Beam Technology (Germany)

Published in SPIE Proceedings Vol. 4915:
Lasers in Material Processing and Manufacturing
ShuShen Deng; Tatsuo Okada; Klaus Behler; XingZong Wang, Editor(s)

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