Angle-tuned second-harmonic generation in periodically-poled lithium niobate

B. J. Kim, H. J. Choi, M. Cha

Research output: Contribution to journalArticlepeer-review

5 Scopus citations


We investigated angular tuning of quasi-phasematching (QPM) second-harmonic generation (SHG), in order to extend the tunable range of QPM and to combine the advantages of QPM and birefringence phase-matching. The direction of the input fundamental wave vector was detuned from the QPM grating vector along the crystallographic Zaxis of a periodically-poled lithium niobate (PPLN) crystal in the XY- and XZ-planes. A larger tuning range of SHG was obtained for the detuning in the XZ-plane, continuously shifting the QPM peak of the fundamental wavelength from 1524 to 1595 nm by changing the detuning angle from 0° (parallel to X-axis as conventional QPM) to 23.2°.

Original languageEnglish (US)
Pages (from-to)349-353
Number of pages5
JournalApplied Physics B: Lasers and Optics
Issue number2
StatePublished - May 2012
Externally publishedYes

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)
  • Physics and Astronomy(all)


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