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Applied Physics B

, Volume 72, Issue 6, pp 743–748 | Cite as

-70 dB optical carrier suppression by two-beam coupling in photorefractive media

  • D.Z. Anderson
  • V. Damiao
  • D. Popovic
  • Z. Popovic
  • S. Romisch
  • A. Sullivan
Article

Abstract.

Suppression of an optical carrier from an RF modulated laser beam of wavelength 532 nm is performed using two-beam coupling in photorefractive barium titanate. A theoretical analysis reveals that perfect suppression can be achieved at a specific modulation strength, which depends on the gain and intensity ratio between the two beams. The experiments achieve a maximum of -72.9±2.4 dB carrier suppression at the theoretically ideal modulation strength, and -61.0±2.4 dB for small modulation strengths.

PACS: 42.6.5-k; 42.65 Hw; 42.40.Kw 

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Copyright information

© Springer-Verlag 2001

Authors and Affiliations

  • D.Z. Anderson
    • 1
  • V. Damiao
    • 1
  • D. Popovic
    • 2
  • Z. Popovic
    • 2
  • S. Romisch
    • 2
  • A. Sullivan
    • 1
  1. 1.Department of Physics and JILA, University of Colorado, Boulder CO, 80309-0440, USAUS
  2. 2.Deptartment of Electrical and Computer Engineering, University of Colorado, Boulder CO, 80309-0425, USAUS

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