Wen-Fung Liu, I. Liu, L. Chung, Ding-Wei Huang, C.C. Yang
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Cladding-core mode coupling in a fiber Bragg grating controlled by acoustics for multiplexing application
Summary form only given. In this paper, we report a novel implementation for WDM add/drop multiplexing application based on acoustically modulated fiber Bragg grating. We use acoustic waves to excite lateral vibration and hence micro-bending of the fiber grating. By appropriately controlling the period of the micro-bending, the coupling between the core modes and certain cladding modes in the fiber is produced. Through such mechanisms, we can select the reflection window by switching on/off the acoustic wave.
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