Modeling nonlinear photonics of nonlinear fiber core for optical limiting application

Iam-choon Khoo, M. V. Wood, P. H. Chen, M. Y. Shih, A. Shishido, A. Diaz

Research output: Contribution to journalArticlepeer-review

1 Scopus citations


A quantitative model for nonlinear photonic absorption processes in a liquid and their effects in the nonlinear transmission and limiting of a laser pulse are studied. The theoretical simulation results accounting for two-photon- and excited-state absorption processes, and the dynamic evolution of the molecular level populations and propagation of picosecond and nanosecond laser pulses through a fiber core formed by such liquid are in good agreement with experimental observations. In pump-probe studies using picosecond and nanosecond laser pump pulses and cw probe, we have also observed oscillatory transmission associated with laser induced thermal/density effects. We also discuss applications of the supra optical nonlinearity of nematic liquid crystal film for anti-laser jamming and optical limiting operation against long-pulse or cw lasers.

Original languageEnglish (US)
Pages (from-to)245-252
Number of pages8
JournalProceedings of SPIE - The International Society for Optical Engineering
Issue number1
StatePublished - Nov 29 2000

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering


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