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Proceedings Paper

Fiber optic for high-power diode lasers
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Paper Abstract

For high power laser applications where optical fibers are used the main problem is to keep the power losses as small as possible. To fullfill this demand it is important to utilize the power from the laser efficently and avoid damages on the fiber due to high temperature caused by radition outside the fiber core. Thererfor the design has to be made in a robust way that protect the fiber from damages caused by the high power. Depending on the beam quality from the laser two different kind of fibers have to be used, a fiber with polymer cladding for high NA and silica cladded fibers for lower NA. In both cases the core is made of fused silica. Since there is always some radiation not keept within the fibre core the cooling is of great importance. The radiation can be caused by scattering light from the beam itself or from back reflection in the application. Different kind of design used to keep the power losses as small as possible as well as design of efficient cooling systems will be discussed in this paper. Experimental results from our development of optical fibers will be present.

Paper Details

Date Published: 19 June 2003
PDF: 6 pages
Proc. SPIE 4973, High-Power Diode Laser Technology and Applications, (19 June 2003); doi: 10.1117/12.478371
Show Author Affiliations
Ola I. Blomster, Optoskand AB (Sweden)
Sven-Olov E. Roos, Optoskand AB (Sweden)

Published in SPIE Proceedings Vol. 4973:
High-Power Diode Laser Technology and Applications
Mark S. Zediker, Editor(s)

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