Applied Physics B

, Volume 59, Issue 6, pp 573–580

Nonlinear optical propagation and self-limiting effect in liquid-crystalline fibers

  • I. C. Khoo
  • H. Li
Liquid-Crystal Nonlinear Optics

DOI: 10.1007/BF01081176

Cite this article as:
Khoo, I.C. & Li, H. Appl. Phys. B (1994) 59: 573. doi:10.1007/BF01081176


The nonlinear optical properties of the isotropic phase of liquid crystals induced by nanosecond laser pulses are analyzed in the context of nonlinear multi-mode propagation in a liquid-crystal-cored fiber. The negative thermal density nonlinearity of the core gives rise to an intensity-dependent loss in the core-guided transmission and optical action. Experiments conducted with such liquid-crystal-cored fibers show that the optical limiting threshold for nanosecond laser pulses can be as low as 0.09 J/cm2, which is one of the lowest among known nonlinear optical materials and structures, including bulk liquid-crystal films.



Copyright information

© Springer-Verlag 1994

Authors and Affiliations

  • I. C. Khoo
    • 1
  • H. Li
    • 1
  1. 1.Department of Electrical EngineeringThe Pennsylvania State UniversityUniversity ParkUSA