Applications of diffractive optics to diode laser arrays and amplifiers

James R. Leger; Greg S. Mowry

doi:10.1117/12.209025

12 May 1995 Applications of diffractive optics to diode laser arrays and amplifiers

James R. Leger, Greg S. Mowry

Author Affiliations +

Proceedings Volume 2383, Micro-Optics/Micromechanics and Laser Scanning and Shaping; (1995) https://doi.org/10.1117/12.209025
Event: Photonics West '95, 1995, San Jose, CA, United States

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.

Citation Download Citation

James R. Leger and Greg S. Mowry "Applications of diffractive optics to diode laser arrays and amplifiers", Proc. SPIE 2383, Micro-Optics/Micromechanics and Laser Scanning and Shaping, (12 May 1995); doi: 10.1117/12.209025; https://doi.org/10.1117/12.209025

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