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Proceedings Paper

Applications of diffractive optics to diode laser arrays and amplifiers
Author(s): James R. Leger; Greg S. Mowry
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Paper Abstract

This paper reviews applications of diffractive optics to optical resonators using diode laser arrays and wide-stripe diode-laser amplifiers as the gain medium. The mode profile can be tailored to any desirable shape by proper design of the diffractive optics. By optimizing additional cavity parameters, these resonators can be designed to discriminate against higher- order cavity modes, insuring single-spatial-mode operation. As a first example, we show a diffractive laser mirror designed to excite a uniform-intensity supermode of an AlGaAs laser array. The effect of varying the phase of this array on modal discrimination is studied. In the second example, a laser mirror is designed to produce a super-Gaussian beam profile in a wide-stripe semiconductor laser amplifier. Two-and-eight-tenths watts of diffraction-limited optical power is obtained.

Paper Details

Date Published: 12 May 1995
PDF: 12 pages
Proc. SPIE 2383, Micro-Optics/Micromechanics and Laser Scanning and Shaping, (12 May 1995); doi: 10.1117/12.209025
Show Author Affiliations
James R. Leger, Univ. of Minnesota/Twin Cities (United States)
Greg S. Mowry, Univ. of Minnesota/Twin Cities (United States)


Published in SPIE Proceedings Vol. 2383:
Micro-Optics/Micromechanics and Laser Scanning and Shaping
M. Edward Motamedi; Leo Beiser, Editor(s)

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