Tunable frequency shift of photorefractive oscillators

Shmuel Sternklar, Shimon Weiss, Baruch Fischer

Research output: Contribution to journalArticlepeer-review

16 Scopus citations


We report on an experimental study of the self-frequency detuning in wave mixing oscillators with the photorefractive barium titanate crystal. We show its dependence on a dc electric field on the crystal, optical phases in the oscillator cavity, and light intensity in the crystal. This resolves many aspects of previously observed and unexplained self-frequency detuning effects with similar oscillators and indicates the existence of an internal electric field in the mixing crystal.

Original languageEnglish
Pages (from-to)165-167
Number of pages3
JournalOptics Letters
Issue number3
StatePublished - Mar 1986
Externally publishedYes


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