Crosstalk in Ti: LiNbO3 Directional Coupler Switches Caused by Ti Concentration Fluctuations

Leon McCAUGHAN, Kent D. Choquette

Research output: Contribution to journalArticlepeer-review

Abstract

We have observed random fluctuations in the local Ti concentration profiles of Ti-diffused LiNbO3 waveguides. Calculations show that these variations explain the degraded switch extinction ratio (i.e., crosstalk) and other nonideal characteristics observed in LiNbO3 optical switches. We also demonstrate by calculation a new device configuration for eliminating this source of crosstalk.

Original languageEnglish (US)
Pages (from-to)947-951
Number of pages5
JournalIEEE Journal of Quantum Electronics
Volume22
Issue number6
DOIs
StatePublished - Jun 1986
Externally publishedYes

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics
  • Condensed Matter Physics
  • Electrical and Electronic Engineering

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