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Optics Letters

Optics Letters


  • Editor: Xi-Cheng Zhang
  • Vol. 39, Iss. 4 — Feb. 15, 2014
  • pp: 1034–1037

Coherence measurement with digital micromirror device

Henri Partanen, Jari Turunen, and Jani Tervo  »View Author Affiliations

Optics Letters, Vol. 39, Issue 4, pp. 1034-1037 (2014)

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We measure the complex-valued spatial coherence function of a multimode broad-area laser diode using Young’s classical double slit experiment realized with a digital micromirror device. We use this data to construct the coherent modes of the beam and to simulate its propagation before and after the measurement plane. When comparing the results to directly measured intensity profiles, we find excellent correspondence to the extent that even small details of the beam can be predicted. We also consider the number of measurement points required to model the beam with sufficient accuracy.

© 2014 Optical Society of America

OCIS Codes
(030.1640) Coherence and statistical optics : Coherence
(030.4070) Coherence and statistical optics : Modes
(100.2650) Image processing : Fringe analysis
(140.3490) Lasers and laser optics : Lasers, distributed-feedback

ToC Category:
Coherence and Statistical Optics

Original Manuscript: November 20, 2013
Revised Manuscript: January 13, 2014
Manuscript Accepted: January 15, 2014
Published: February 12, 2014

Henri Partanen, Jari Turunen, and Jani Tervo, "Coherence measurement with digital micromirror device," Opt. Lett. 39, 1034-1037 (2014)

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