Transfer of temporal fluctuations in photorefractive two-beam coupling

S. Juul Jensen, M. Saffman

    Research output: Contribution to journalJournal article


    Transfer of temporal fluctuations between the signal and pump beams in diffusion dominated photorefractive two-beam coupling is studied experimentally. The dependence on the gain, beam intensity ratio, and frequency of the fluctuations is found to agree well with a linearized analysis, The transfer of perturbations is frequency dependent at low frequencies, and becomes constant at frequencies large compared to the inverse material time constant. Vde discuss the possibility of pump noise suppression when amplifying weak signals. (C) 1997 American Institute of Physics.
    Original languageEnglish
    JournalApplied Physics Letters
    Issue number12
    Pages (from-to)1494-1496
    Publication statusPublished - 1997


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