Abstract
A two-mirror beam-shaping technique, applied to the output of diode bars has produced the near circular beams ideally suited to end pumping.1 Here we show that the same technique can be successfully applied to a broad-stripe diode, having a much smaller elongation of the emitter region than a diode bar. In fact a typical broad-stripe diode such as the one we have used (4 W cw output, 500 μm × 1 μm emitter) with M2 values of ~100 and 1 in the junction plane and perpendicular to the plane respectively, has a brightness ~4 times greater than that of a diode bar. So the broad-stripe diode, with its beam shaped to be circular, would be an attractive source for end-pumping, particularly for low gain lasers and also for cladding-pumped fiber lasers.
© 1996 Optical Society of America
PDF ArticleMore Like This
W. A. Clarkson, C. Bollig, P. J. Hardman, and D. C. Hanna
CWN5 Conference on Lasers and Electro-Optics (CLEO:S&I) 1996
A. J. W. Brown, Roy Mead, and Walter R. Bosenberg
CFM7 Conference on Lasers and Electro-Optics (CLEO:S&I) 1993
B. Frei, Th. Graf, and J. E. Balmer
LM12 Advanced Solid State Lasers (ASSL) 1993