講演情報
[19p-A310-6]Electric Field-Induced Mode Switching in Few-Mode Fibers
〇(D)Isha Sharma1, Partha Roy Chaudhuri1 (1.IIT KGP)
キーワード：
Optical fiber sensor、Cantilever beam deflection、Mode switching
We devise an all fiber cantilever beam deflection configuration for selective exciation and swithcing between the higher order modes within a few-mode fibers. In our previous reasearch, we introduced a novel approach based on cantilever beam deflection techniques for sensing the surrounding electric field. Now, we implement our cantilever technique to achieve the switching between higher order modes based on introducing a controlled perturbation offset in the input launching conditions. We coat the fiber with an optimized composition of our electrostrictive probe sample and placed it in an electric field. Under the influence of applied electric field, the coated fiber deflects due to induced polarization of probe material. This deflection leads to modulation of the input launching conditions, thereby altering the mode excitation within the fiber resulting in the switching of the output mode.