Lithium-niobate channel waveguide for the realization of long-period gratings

Wei Jin, K. S. Chiang, Q. Liu, C. K. Chow, H. P. Chan, K. P. Lor

Research output: Journal article publicationJournal articleAcademic researchpeer-review

15 Citations (Scopus)


We propose a special lithium-niobate (LiNbO3) single-mode waveguide for the realization of long-period gratings, which consists of a channel core embedded in a thin slab cladding. We fabricated the waveguide on a z-cut LiNbO3substrate with a two-step proton-exchange process and demonstrated its suitability for grating application with a number of removable photoresist long-period gratings deposited on the waveguide surface. The waveguide fabrication process and the LiNbO3waveguide structure could be further explored for the development of electrooptic gratings for high-speed applications.
Original languageEnglish
Pages (from-to)1258-1260
Number of pages3
JournalIEEE Photonics Technology Letters
Issue number14
Publication statusPublished - 15 Jul 2008
Externally publishedYes


  • Integrated optics
  • Lithium niobate
  • Long-period grating
  • Optical waveguide

ASJC Scopus subject areas

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


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