Beam shaping design for coupling high power diode laser stack to fiber

SH Ghasemi, MR Hantehzadeh, J Sabbaghzadeh… - Applied …, 2011 - opg.optica.org
A beam shaping technique that rearranges the beam for improving the beam symmetry and
power density of a ten-bar high power diode laser stack is simulated considering a stripe
mirror plate and a V-Stack mirror in the beam shaping system. In this technique, the beam of
a high power diode laser stack is effectively coupled into a standard 550? μm core diameter
and a NA= 0.22 fiber. By this technique, compactness, higher efficiency, and lower cost
production of the diode are possible.

A beam shaping design for coupling high power diode laser stack to fiber with capability of spectral narrowing and stabilizing

SH Ghasemi, M Lafouti - Optics Communications, 2012 - Elsevier
We applied a VHG-FAC lens in our design in this work to collimate the fast axis and lock the
output spectrally. We used a beam shaping technique to improve the beam symmetry and
power density of a high power diode laser stack with a stripe mirror plate, a V-Stack mirror
and polarization beam combining elements. By this technique, the beam of a high power
diode laser stack is effectively coupled into a standard 365μmcore diameter and a NA= 0.22
fiber. By this technique, compactness, higher efficiency, narrower spectral line width and …
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