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Applied Optics

Applied Optics


  • Vol. 43, Iss. 21 — Jul. 20, 2004
  • pp: 4232–4236

Compact stacking of diode lasers for pulsed light sources of high brightness

Taito Alahautala, Erkki Lassila, and Rolf Hernberg  »View Author Affiliations

Applied Optics, Vol. 43, Issue 21, pp. 4232-4236 (2004)

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A compact stacking architecture for high-power diode-laser arrays is proposed and compared with traditional stacks. The objective of compact stacking is to achieve high brightness values without the use of microlenses. The calculated brightness for a compact stack is over 300 W mm-2 sr-1, which is approximately 40 times higher than that of a traditional stack made of similar laser emitters. Even higher brightness values of over 600 W mm-2 sr-1 were reached in practice. A laser head was manufactured in which the light from several compact laser stacks could be fiber coupled or the light could be transformed to a highly uniform beam.

© 2004 Optical Society of America

OCIS Codes
(140.2010) Lasers and laser optics : Diode laser arrays
(140.2020) Lasers and laser optics : Diode lasers
(140.7300) Lasers and laser optics : Visible lasers
(150.2950) Machine vision : Illumination

Original Manuscript: September 26, 2003
Revised Manuscript: April 3, 2004
Published: July 20, 2004

Taito Alahautala, Erkki Lassila, and Rolf Hernberg, "Compact stacking of diode lasers for pulsed light sources of high brightness," Appl. Opt. 43, 4232-4236 (2004)

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