Instabilities and all-optical phase-controlled switching in a nonlinear directional coherent coupler

S. Wabnitz, Ewan M Wright, C. T. Seaton, G. I. Stegeman

Research output: Contribution to journalArticle

88 Scopus citations


The instability in the evolution of a nonlinear wave along a directional coupler is investigated with the beam propagation method, both for self-focusing and for self-defocusing materials. A new device is proposed for switching an intense light beam at the device output by changing the relative phase of a weak input signal.

Original languageEnglish (US)
Pages (from-to)838-840
Number of pages3
JournalApplied Physics Letters
Issue number14
Publication statusPublished - 1986


ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

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