Coherent beam superposition of ten diode lasers with a Dammann grating

David Paboeuf, Florian Emaury, Sébastien de Rossi, Raymond Mercier, Gaëlle Lucas-Leclin, Patrick Georges

Research output: Contribution to journalArticle

15 Citations (Scopus)

Abstract

We demonstrate the use of a binary diffractive optical element in a very simple setup to convert the multilobed beam from a low fill factor array of coherent laser diodes into a quasi-Gaussian beam. The phase profile of the grating is determined with a phase retrieval algorithm. Experimentally, the conversion efficiency reaches more than 44%. We also establish that this setup can be used to make an effective measurement of the coherency of the laser array.
LanguageEnglish
Pages1515-1517
Number of pages3
JournalOptics Letters
Volume35
Issue number10
DOIs
Publication statusPublished - 15 May 2010

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semiconductor lasers
gratings
laser arrays
retrieval
profiles

Keywords

  • diffractive optical element
  • multilobed beam
  • laser diodes
  • quasi-Gaussian beam

Cite this

Paboeuf, D., Emaury, F., de Rossi, S., Mercier, R., Lucas-Leclin, G., & Georges, P. (2010). Coherent beam superposition of ten diode lasers with a Dammann grating. Optics Letters, 35(10), 1515-1517. https://doi.org/10.1364/OL.35.001515
Paboeuf, David ; Emaury, Florian ; de Rossi, Sébastien ; Mercier, Raymond ; Lucas-Leclin, Gaëlle ; Georges, Patrick. / Coherent beam superposition of ten diode lasers with a Dammann grating. In: Optics Letters. 2010 ; Vol. 35, No. 10. pp. 1515-1517.
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Paboeuf, D, Emaury, F, de Rossi, S, Mercier, R, Lucas-Leclin, G & Georges, P 2010, 'Coherent beam superposition of ten diode lasers with a Dammann grating' Optics Letters, vol. 35, no. 10, pp. 1515-1517. https://doi.org/10.1364/OL.35.001515

Coherent beam superposition of ten diode lasers with a Dammann grating. / Paboeuf, David; Emaury, Florian; de Rossi, Sébastien; Mercier, Raymond; Lucas-Leclin, Gaëlle; Georges, Patrick.

In: Optics Letters, Vol. 35, No. 10, 15.05.2010, p. 1515-1517.

Research output: Contribution to journalArticle

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AU - Georges, Patrick

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Paboeuf D, Emaury F, de Rossi S, Mercier R, Lucas-Leclin G, Georges P. Coherent beam superposition of ten diode lasers with a Dammann grating. Optics Letters. 2010 May 15;35(10):1515-1517. https://doi.org/10.1364/OL.35.001515