Simultaneous amplitude modulation and wavelength conversion in an asymmetric-duty-cycle periodically poled lithium niobate

Y. H. Chen*, F. C. Fan, Y. Y. Lin, Y. C. Huang, J. T. Shy, Yu-Pin Lan, Yung-Fu Chen

*Corresponding author for this work

Research output: Contribution to journalArticle

17 Scopus citations

Abstract

We report the theory and experiment for an amplitude modulator and wavelength converter based on an electrode-coated asymmetric-duty-cycle periodically poled lithium niobate (PPLN). In a 56%/44% domain-duty-cycle PPLN crystal, we modulated the amplitude of the 532-nm second-harmonic output and measured a normalized half-wave voltage of 1.1V × d(μm)/leff (cm), where d is the separation of the electrodes and leff is the effective electrode length defined by the PPLN length multiplying the deviation of the domain-duty-cycle from the 50% value. A modulation depth of 85% was obtained in the linear modulation regime. We also derived a unified theory to describe the half-wave voltage for two types of PPLN-based amplitude modulators.

Original languageEnglish
Pages (from-to)417-423
Number of pages7
JournalOptics Communications
Volume223
Issue number4-6
DOIs
StatePublished - 1 Aug 2003

Keywords

  • Amplitude modulation
  • Laser
  • Nonlinear optics
  • Wavelength conversion

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