J4 ›› 2009, Vol. 26 ›› Issue (5): 591-595.

• Nonlinear Optics • Previous Articles     Next Articles

Optical bistability of a nonlinear microcavity

JIN Yi, CHEN Xian-Feng, HUANG Zheng-Yi, SHEN Xiao-Ming, JIANG Mei-Ping   

  1. School of Physics and Mathematics, Jiangsu Polytechnic University, Changzhou 213164, China
  • Published:2009-09-28 Online:2009-08-27
  • Contact: 金铱, 男, 1964年生, 江苏工业学院数理学院讲师, 主要从事光学材料方面的研究. E-mail:jin-y@163.com

Abstract:

Based on Fabry-Perot cavity’s theories and efficiency refractive index, the optical bistability of a nonlinear microcavity is studied, and the corresponding mathematical formula are deduced. The curves of these theories are well fitted with those of numerical simulation in other reported reviews. Our investigation shows that appropriate frequency-shifting should be put on the incident light in order to produce bistability for a nonlinear system. If the system is composed of focusing nonlinear medium, the frequency must be red-shifted, otherwise it must be blue-shifted. The magnitude of critical shifting is 0.866 times of the width of microcavity resonance mode.

Key words: nonlinear optics, bistability, efficiency refractive index, Kerr medium, Fabry-Perot cavity