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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 20, Iss. 17 — Aug. 13, 2012
  • pp: 19168–19175

Analytic and experimental investigations on influence of harmonic generation on acousto-optical modulation

Peter Bechtold, Oliver Hentschel, and Michael Schmidt  »View Author Affiliations

Optics Express, Vol. 20, Issue 17, pp. 19168-19175 (2012)

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In application, laser power is modulated prior to harmonic generation to a large part. Consequently modulation characteristics are influenced as a result of the non-linearity of harmonic generation. Within this paper, straight-forward approaches to calculate modulation key parameters (rise time, fall time, bandwidth and contrast ratio) of an acousto-optical modulator prior to harmonic generation stage are presented. The results will be compared to experimental data for third harmonic generation (THG) of a 1064 nm fs-laser which is power-modulated by a TeO2-AOM prior to THG. In the latter case, rise time and fall time are significantly reduced to approximately 66% after THG both in experimental and analytical study.

© 2012 OSA

OCIS Codes
(140.7090) Lasers and laser optics : Ultrafast lasers
(190.2620) Nonlinear optics : Harmonic generation and mixing
(220.4830) Optical design and fabrication : Systems design
(230.1040) Optical devices : Acousto-optical devices
(230.4110) Optical devices : Modulators

ToC Category:
Lasers and Laser Optics

Original Manuscript: May 23, 2012
Manuscript Accepted: July 19, 2012
Published: August 6, 2012

Peter Bechtold, Oliver Hentschel, and Michael Schmidt, "Analytic and experimental investigations on influence of harmonic generation on acousto-optical modulation," Opt. Express 20, 19168-19175 (2012)

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