Adjustment of the coupling ratio by laser ablation of Ti:LiNbO3 directional couplers

Chii Chang Chen, Henri Porte, Jean Pierre Goedgebuer, Vincent Armbruster, Richard Ferriere

Research output: Contribution to journalArticlepeer-review

4 Scopus citations

Abstract

The coupling ratio of directional couplers in Z-cut Y-propagation and X-cut Z-propagation LiNbO3 crystals was adjusted by laser ablation. The coupling ratio change is more efficient for the TM-mode of Z-cut couplers. The method can be used to correct the uncertainty of the coupling ratio for directional couplers that occurs during fabrication process.

Original languageEnglish
Pages (from-to)453-455
Number of pages3
JournalOptics and Laser Technology
Volume34
Issue number6
DOIs
StatePublished - Sep 2002

Keywords

  • Ablation
  • Directional couplers
  • Integrated optics

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