Proceedings ArticleDOI
Adaptive mode control in few mode fibers and its applications
Islam Ashry,Peng Lu,Yong Xu +2 more
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TLDR
In this paper, an adaptive mode control method that can selectively excite the linearly polarized (LP) mode within the FMF is presented. But how to precisely control the mode composition of optical signals in FMFs remains a difficult challenge.Abstract:
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.read more
References
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Numerical Optimization
Jorge Nocedal,Stephen J. Wright +1 more
TL;DR: Numerical Optimization presents a comprehensive and up-to-date description of the most effective methods in continuous optimization, responding to the growing interest in optimization in engineering, science, and business by focusing on the methods that are best suited to practical problems.
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Recent progress in distributed fiber optic sensors.
Xiaoyi Bao,Liang Chen +1 more
TL;DR: A sensor with centimeter spatial resolution and high precision measurement of temperature, strain, vibration and birefringence can find applications in aerospace smart structures, material processing, and the characterization of optical materials and devices.
Journal ArticleDOI
Principal Modes in Graded-Index Multimode Fiber in Presence of Spatial- and Polarization-Mode Coupling
TL;DR: In this paper, the authors developed a field-coupling model for propagation in graded-index MMF, analogous to the principal-state model for polarization-mode dispersion in single-mode fiber.
Journal ArticleDOI
73.7 Tb/s (96 x 3 x 256-Gb/s) mode-division-multiplexed DP-16QAM transmission with inline MM-EDFA
Vincent A. J. M. Sleiffer,Yongmin Jung,V. Veljanovski,R.G.H. van Uden,Maxim Kuschnerov,H.-S. Chen,Beril Inan,Lars Gruner-Nielsen,Yi Sun,David J. Richardson,Shaif-ul Alam,Francesco Poletti,Jayanta K. Sahu,Anirban Dhar,A.M.J. Koonen,Brian Corbett,Richard J. Winfield,Andrew D. Ellis,H. de Waardt +18 more
TL;DR: The total demonstrated net capacity, taking into account 20% of FEC-overhead and 7.5% additional overhead (Ethernet and training sequences), is 57.6 Tb/s, corresponding to a spectral efficiency of 12 bits/s/Hz.
Journal ArticleDOI
Simultaneous temperature and refractive index measurements using a 3/spl deg/ slanted multimode fiber Bragg grating
TL;DR: In this paper, a 3/spl deg/slanted multimode fiber Bragg grating (MFBG) is used for simultaneous temperature and refractive index measurement with two wavelength groups in its transmission spectrum.