Focusing diode lasers using a truncated paraboloid with spherical output surface

Erkki Lassila; Taito Alahautala; Rolf Hernberg

doi:10.1117/1.2734993

1 May 2007 Focusing diode lasers using a truncated paraboloid with spherical output surface

Erkki Lassila, Taito Alahautala, Rolf Hernberg

Author Affiliations +

Optical Engineering, Vol. 46, Issue 5, 054301 (May 2007). https://doi.org/10.1117/1.2734993

Abstract

The effect of a spherical output surface on the performance of a truncated dielectric paraboloid in focusing the light from multiple diode lasers was studied with ray tracing. Especially the effects of the radius and the displacement of the output sphere were investigated. In addition, the performance of a parabolic concentrator with a spherical output surface in high-numerical-aperture focusing of diode laser light was demonstrated experimentally. The 1/e² diameter of the measured focus was less than 100 μm.

©(2007) Society of Photo-Optical Instrumentation Engineers (SPIE)

Citation Download Citation

Erkki Lassila, Taito Alahautala, and Rolf Hernberg "Focusing diode lasers using a truncated paraboloid with spherical output surface," Optical Engineering 46(5), 054301 (1 May 2007). https://doi.org/10.1117/1.2734993

Published: 1 May 2007

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