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Experimental studies of proton-exchanged waveguides in lithium niobate using toluic acid

  • Edwin Y. Pun*
  • , K. K. Loi
  • , P. S. Chung
  • *Corresponding author for this work
  • Chinese University of Hong Kong

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

Low-loss proton-exchanged planar waveguides have been fabricated in z-cut LiNbO3 using a new organic proton source: toluic acid. These waveguides exhibit a step refractive index profile with a surface index increase of 0.124 measured at 0.633 μm. The propagation loss was typically around 1 dB/cm. The diffusion constant Do and the activation energy Q for the photon exchange process were found to be 7.02 × 107 μm2/hr and 75.58 kJ/mol, respectively.

Original languageEnglish
Title of host publicationProceedings of SPIE - The International Society for Optical Engineering
PublisherPubl by Int Soc for Optical Engineering
Pages64-70
Number of pages7
ISBN (Print)0819407143, 9780819407146
DOIs
StatePublished - 1991
Externally publishedYes
EventIntegrated Optical Circuits - Boston, MA, USA
Duration: 3 Sep 19914 Sep 1991

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume1583
ISSN (Print)0277-786X

Conference

ConferenceIntegrated Optical Circuits
CityBoston, MA, USA
Period3/09/914/09/91

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