Topic
Equilibrium mode distribution
About: Equilibrium mode distribution is a research topic. Over the lifetime, 928 publications have been published within this topic receiving 14939 citations.
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TL;DR: In this article, the phase nonreciprocity of the opposite waves excited at a local inhomogeneity in the waveguide was investigated, and a theoretical and experimental study was made of the phase nonsmoothness of opposite waves at the inhomogeneities.
Abstract: An investigation was made of perturbations of the dominant mode in a single-mode fiber waveguide. A theoretical and experimental study was made of the phase nonreciprocity of the opposite waves excited at a local inhomogeneity in the waveguide.
19 Dec 2005
TL;DR: In this article, the expression for group speed of axial mode propagation in multimode waveguide is derived and used as a basis for calculations of group speed depending on the wavelength and on waveguide parameters.
Abstract: The expression for group speed of axial mode propagation in multimode waveguide is received in this paper. This expression was used as a basis for calculations of group speed depending on the wavelength and on waveguide parameters. Moreover, this paper defines the results of calculations for differential group delay, characterising polarized mode dispersion within specific mode
01 Jan 2014
01 Jul 2002
TL;DR: In this article, the authors report both theoretical and experimental evidence that equal MPD is extremely unlikely in few mode fiber, and next to impossible to achieve in highly multimode fiber.
Abstract: In this paper we report both theoretical and experimental evidence that equal MPD is extremely unlikely in few mode fiber, and next to impossible to achieve in highly multimode fiber. In one approach, we simply add together the intensity distributions of the various possible modes for a given V number fiber, and compare with what is observed in the laboratory under a variety of conditions. This is done for the incoherent case using a one hundred meter length of a similar fiber. In another method, Gloge's theory for the number of propagating modes is used to determine the approximate MPD in a highly multimode fiber. Both techniques point to the conclusion that the most likely distribution of power among the modes is one that decreases exponentially with mode, despite various mode-scrambling efforts.
TL;DR: In this article, the length at which the equilibrium mode distribution in W-type optical fibers is achieved for different structural characteristics of the fiber and width of launch beam is calculated for different optical fiber types.
Abstract: Power flow equation is used to calculate the length at which the equilibrium mode distribution in W-type optical fibers is achieved for different structural characteristics of the fiber and width of launch beam.