Gain circulation in multimode lasers

Kenju Otsuka*, Yoji Aizawa

*Corresponding author for this work

    Research output: Contribution to journalArticlepeer-review

    18 Citations (Scopus)


    Self-organized collective behavior in globally coupled multimode lasers is investigated by introducing a new physical quantity, gain circulation, that characterizes the gain transfer among lasing modes. Numerical simulations indicate that the self-organization is established such that the gain circulations in all the closed interaction paths involving arbitrary multiple lasing modes become negligibly small as compared with direct mode-to-mode gain circulations. This implies that the nonreciprocal local (i.e., modeto-mode) gain transfers are self-organized so as to ensure reciprocal average gain flow among modes approximately and that temporal evolutions of individual mode intensities are determined accordingly.

    Original languageEnglish
    Pages (from-to)2701-2704
    Number of pages4
    JournalPhysical Review Letters
    Issue number17
    Publication statusPublished - 1994

    ASJC Scopus subject areas

    • General Physics and Astronomy


    Dive into the research topics of 'Gain circulation in multimode lasers'. Together they form a unique fingerprint.

    Cite this