Observation of three-mode parametric interactions in long optical cavities

Chunnong Zhao, Li Ju, Y. Fan, Slawomir Gras, B.J.J. Slagmolen, X.M. Miao, Pablo Barriga, David Blair, D.J. Hosken, A.F. Brooks, P.J. Veitch, D. Mudge, J. Munch

    Research output: Contribution to journalArticlepeer-review

    39 Citations (Scopus)
    187 Downloads (Pure)


    We report the observation of three-mode optoacoustic parametric interactions of the type predicted to cause parametric instabilities in a 77-m-long, high-optical-power cavity that uses suspended sapphire mirrors. Resonant interaction occurs between two distinct optical modes and an acoustic mode of one mirror when the difference in frequency between the two optical cavity modes is close to the frequency of the acoustic mode. Experimental results validate the theory of parametric instability in high-power optical cavities, and demonstrate tunable parametric gain similar to 10(-2) and more than 20 dB amplification of a high-order optical mode power generated by an applied acoustic signal.
    Original languageEnglish
    Pages (from-to)online - approx 5-20pp
    JournalPhysical Review A
    Issue number2
    Publication statusPublished - 2008


    Dive into the research topics of 'Observation of three-mode parametric interactions in long optical cavities'. Together they form a unique fingerprint.

    Cite this