【摘 要】
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We present a new method to realize large bandwidth optical limiting using Kerr nonlinearity doped one-dimensional coupled cavity optical waveguides (CCOWs). Whe
【机 构】
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Department of Applied Physics, Harbin Institute of Technology, Harbin 150001
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We present a new method to realize large bandwidth optical limiting using Kerr nonlinearity doped one-dimensional coupled cavity optical waveguides (CCOWs). When the incident intensity is weak, the structure is a perfect CCOW that supports a high transmission band. When the intensity is increased, the Kerr effects change the refractive index of the Kerr cavity which results in a large decrease of transmission coefficients in the whole band.We numerically analyse the limiter using the nonlinear transfer matrix method and nonlinear finite difference in time domain method.
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