Reduction of optical intensity noise by means of two-photon absorption

H. Cao, W. S. Warren, A. Dogariu, L. J. Wang

Research output: Contribution to journalArticlepeer-review

6 Scopus citations


We demonstrate an all-optical intensity noise reduction technique by using two-photon absorption of ZnSe in a Z-scan configuration. We measure the nonlinear transmission and the shot-to-shot energy fluctuations of 860-nm intense femtosecond laser pulses. At a 40% nonlinear transmission level the noise in the pulse train is reduced to 24%. This yields an additional 40% reduction in the relative pulse energy fluctuation. A realistic theoretical treatment is presented and is found to be in good agreement with experimental results.

Original languageEnglish (US)
Pages (from-to)560-563
Number of pages4
JournalJournal of the Optical Society of America B: Optical Physics
Issue number3
StatePublished - Mar 2003
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Statistical and Nonlinear Physics
  • Atomic and Molecular Physics, and Optics


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