A partition-integration method is proposed and used to study the dispersion property and the frequency response for chirped volume Bragg gratings (CVBGs). The CVBG is divided into short segments, in which each segment is assumed to be uniform and characterized with a matrix. The frequency responses and dispersion properties of CVBGs are simulated. The frequency response is a gate-like function, and the group delay shows linearity with a few ripples.
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