From Event: SPIE Optical Engineering + Applications, 2016
With the development of mode-division-multiplexing (MDM), few mode fibers (FMFs) have found a wide range of
applications in optical sensing and communications. However, how to precisely control the mode composition of optical
signals in FMFs remains a difficult challenge. In this paper, we present an adaptive mode control method that can
selectively excite the linearly polarized (LP) mode within the FMF. The method is based on using optical pulses
reflected by a fiber Bragg grating (FBG) for wavefront optimization. Two potential applications are discussed. First, we
theoretically demonstrate the feasibility of large scale multiplexing of absorption based fiber optical sensors. Second, we
discuss the possibility of using mode dependent loss to reconstruct the spatial distributions of absorptive chemicals
diffused within a FMF.
Islam Ashry, Peng Lu, and Yong Xu, "Adaptive mode control in few mode fibers and its applications," Proc. SPIE 9956, Ultrafast Nonlinear Imaging and Spectroscopy IV, 995612 (Presented at SPIE Optical Engineering + Applications: August 30, 2016; Published: 5 October 2016); https://doi.org/10.1117/12.2236994.
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