Acta Photonica Sinica, Volume. 43, Issue 9, 923001(2014)
Multiple-valued Characteristic Research of Nonlinear One-dimensional Photonic Crystal Reflection Spectrum
Based on the sublayer division and backward recursion algorithm, a simple and efficient numerical method for calculating the nonlinear reflection spectrum of one-dimensional photonic crystal with one kerr nonlinear defect layer was presented.The nonlinear reflection spectrum in the wavelength range of 1 535 nm to 1 565 nm was obtained by the method.When incident intensity is higher than the threshold, the defect mode moves slowly and appears inclined curved multiple-valued features at certain wavelengths.The influence of incident intensity on jump-up wavelength and jump-down wavelength was analyzed.The influence of parameters of periodic dielectric layer and nonlinear layer on reflection spectrum were investigated systematically.The results showed that the period, high-low refractive index ratio of periodic medium and the thickness of nonlinear defect layer is increased, the defect mode width is narrowed and the threshold of incident intensity, jump-on and jump-down wavelength is decreased.While when the third-order nonlinear coefficient is increased for nonlinear layer, the threshold of incident intensity is decreased and the defect mode width, jump-on and jump-down wavelength threshold is not changed obviously.The multiple-valued feature has an important role in the design of optical switch, optical filter, et al.
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ZHANG Rong-jun, ZHANG Juan, XIA Rui-shen. Multiple-valued Characteristic Research of Nonlinear One-dimensional Photonic Crystal Reflection Spectrum[J]. Acta Photonica Sinica, 2014, 43(9): 923001
Received: Dec. 25, 2013
Accepted: --
Published Online: Oct. 23, 2014
The Author Email: Rong-jun ZHANG (tineer20051@163.com)