Zirconium-diffusion-doped Ti : LiNbO3 strip waveguide for integrated optics

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review

8 Scopus Citations
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Author(s)

  • De-Long Zhang
  • Jian Kang
  • Qun Zhang
  • W. J. Du
  • W. H. Wong

Detail(s)

Original languageEnglish
Pages (from-to)1715-1721
Journal / PublicationOptical Materials Express
Volume5
Issue number8
Publication statusPublished - 2015

Abstract

We report Zr4+-doped Ti:LiNbO3 strip waveguide fabricated by Zr4+-diffusion-doping followed by diffusion of 8 μm wide, 100 nm thick Tistrips on a Z-cut congruent substrate. Optical study shows that the waveguide well supports both TE and TM, is single-mode at the 1.5 μm wavelength, and has a loss ≤ 1.3/1.5 dB/cm for the TE/TM mode. Secondary ion mass spectrometry study shows that the Zr4+-profile part having a Zr4+-concentration above the threshold of photorefractive damage covers 60% (70%) ordinary (extraordinary) index profile in the waveguide. We conclude that the waveguide is optical-damage-resistant.

Citation Format(s)

Zirconium-diffusion-doped Ti : LiNbO3 strip waveguide for integrated optics. / Zhang, De-Long; Kang, Jian; Zhang, Qun; Du, W. J.; Wong, W. H.; Pun, E. Y B.

In: Optical Materials Express, Vol. 5, No. 8, 2015, p. 1715-1721.

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review