Search Results - Borui Li
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Hole-Assisted Graded-Index Four-LP-Mode Fiber With Low Differential Mode Group Delay Over C+L Band
Published 2016-01-01Get full textIn this paper, in order to achieve low differential mode group delay (DMGD) over the C+L band, we propose the hole-assisted graded-index few mode fiber (FMF) design supporting four nondegenerated linear polarized (LP) modes for a mode division multiplexing system. In order to determine th...
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Three-Dimensional Adaptive Modulation and Coding for DDO-OFDM Transmission System
Published 2017-01-01Get full textWe propose a 3-D adaptive loading algorithm (ALA), which can individually allocate proper modulation formats, power levels, and the forward error correction codes to each orthogonal frequency division multiplexing (OFDM) subcarrier according to the estimated channel state information (CSI). The intr...
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End-View Image Processing Based Angle Alignment Techniques for Specialty Optical Fibers
Published 2017-01-01Get full textWe propose two end-view-based digital image processing algorithms for high-precision rotational angle alignment of specialty optical fibers. The first technique is based on the cross-correlation calculation between images of two fiber ends. Accurate alignment can be achieved between identical specia...
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Experimental Demonstration of Bidirectional OFDM/OQAM-MIMO Signal Over a Multicore Fiber System
Published 2016-01-01Get full textA bidirectional transmission and massive multi-input multi-output (MIMO) enabled radio over a multicore fiber system with centralized optical carrier delivery is experimentally investigated in this paper. Optical carriers for upstream are delivered from the central office to the remote antenna unit...
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Spatial-Division Multiplexed Mach–Zehnder Interferometers in Heterogeneous Multicore Fiber for Multiparameter Measurement
Published 2016-01-01Get full textWe propose and demonstrate a novel spatial-division multiplexed Mach–Zehnder interferometer (MZI) structure in heterogeneous multicore fiber (MCF) for simultaneous measurement of temperature and strain. The MZI structure is constituted of dual-tapered regions along heterogeneous MCF by us...
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Ionizing radiation acoustic and ultrasound dual-modality imaging for visualization of dose on anatomical structures during radiotherapy
Published 2025-08-01Get full textThe aim of this study is to visualize the radiation dose on anatomical structures during radiation therapy (RT) by mapping radiation dose deposition and tracking anatomical structures simultaneously. A dual-modality volumetric imaging system, which combines ionizing radiation acoustic imaging (iRAI)...
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