Generation of tunable green radiation in bulk periodically poled KTiOPO4

P. Zeppini, P. Cancio, G. Giusfredi, D. Mazzotti, A. Arie, G. Rosenman, P. De Natale

Research output: Contribution to journalArticlepeer-review

8 Citations (SciVal)


We report a characterisation of a flux-grown periodically poled KTiOPO4 crystal used for second-harmonic generation in a diode laser source, that operates with fundamental radiation tunable around 1083nm wavelength. The conversion efficiency is measured for the three different grating periods of the crystal, as a function of input wavelength, crystal temperature and fundamental power. The measurements were fitted to the theoretical model of Boyd and Kleinman for frequency conversion of focused Gaussian beams. This enabled us to determine the temperature and wavelength dependence of the difference in refractive index between the interacting waves.

Original languageEnglish
Pages (from-to)553-563
Number of pages11
JournalOptics and Lasers in Engineering
Issue number5
Publication statusPublished - May 2002

Bibliographical note

Funding Information:
We thank M. Inguscio for useful suggestions. A. Arie acknowledges financial support from the European Union under Contract No. ERB FMGECT950017 and Contract No. HPRICT1999-00111. This work was partially supported by Istituto Nazionale di Geofisica e Vulcanologia and Gruppo Nazionale di Vulcanologia, Italy.


  • KTP
  • Non-linear optical coefficient
  • Periodically poled crystal
  • Second-harmonic generation

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Atomic and Molecular Physics, and Optics
  • Mechanical Engineering
  • Electrical and Electronic Engineering


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