Fluctuations in the phase-conjugate signal generated via degenerate four-wave mixing

Prem Kumar*, Jeffrey H. Shapiro, Roy S. Bondurant

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

7 Scopus citations


The excess fluctuations of the phase-conjugate (PC) signal generated via pulsed degenerate four-wave mixing (DFWM) in sodium vapor are investigated. Various dye-laser oscillator and amplifier combinations are employed to trace the sources of these fluctuations. For DFWM driven by an externally-stabilized cw dye-laser oscillator amplified with a dye system pumped by the smoothed pulses of a Nd:YAG laser, the PC excess fluctuations are very highly correlated with the energy fluctuations of the input amplified dye-laser pulses. Thus, input-pulse selection on the basis of energy alone permits observation of the quantum-mechanical fluctuations of the PC signal.

Original languageEnglish (US)
Pages (from-to)183-188
Number of pages6
JournalOptics Communications
Issue number3
StatePublished - Jun 1 1984

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Atomic and Molecular Physics, and Optics
  • Physical and Theoretical Chemistry
  • Electrical and Electronic Engineering


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