First observation of backward second-harmonic generation in periodically poled bulk LiNbO3

Jin U. Kang, William K. Burns, Yujie J. Ding, Joseph S. Melinger

Research output: Contribution to journalConference articlepeer-review

Abstract

LiNbO3 crystals were periodically polled by applying eight 300-μs electric pulses at 25.6 kV/mm in the 230-μm-thick z-cut LiNbO3 with a 3.3-μm period Al grating pattern on the +c phase and an Al ground plane on the -c face. For the ultrashort pulses, SH efficiency is reduced significantly. The weak, nonphase-matched forward SH beam, which propagates along a path different from that for the backward SH beam because of the angled output facet, is reflected. The backward second harmonic generation (SHG) in periodically poled bulk LiNbO3 has the maximum conversion efficiency of approximately 0.02%.

Original languageEnglish (US)
Pages (from-to)15
Number of pages1
JournalConference Proceedings - Lasers and Electro-Optics Society Annual Meeting-LEOS
Volume11
StatePublished - 1997
Externally publishedYes
EventProceedings of the 1997 Conference on Lasers and Electro-Optics, CLEO - Baltimore, MD, USA
Duration: May 18 1997May 23 1997

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Electrical and Electronic Engineering

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