Theoretical research of multiple-channel all-fiber acousto-optical modulator of polarisation maintaining fiber

摘要

All-fiber acousto-optical modulation of polarisation maintaining fiber is of great importance in fiber optics. Previous researchers generally studied one-channel all-fiber acousto-optical modulator of polarisation maintaining fiber. In order to develop the great capability of optical fiber, the multiple-channel all-fiber acousto-optical modulator of polarisation maintaining fiber should be concerned. This paper discusses multiple-channel all-fiber acousto-optical modulator of polarisation maintaining fiber theoretically. The perturbed coupled-mode theory is used to discuss the solutions of coupled-mode equations for optical fiber when there are multiple parts being perturbed, and the multiple-channel modulation is analyzed. The theoretical result coincides with the experimental research very well.