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, a theoretical investigation of such a phenomenon is presented, showing that the above possibility really exists, although it must be paid for with a remarkable increase of the overall attenuation.
3 citations
TL;DR: In this article, the authors compared the thermal conductance of SH mode and mixing mode of acoustic phonons in a double T-shaped quantum waveguide at low enough temperatures by using the scattering-matrix method, and analyzed the influence from mode conversion.
Abstract: We compare the thermal conductance of SH mode and mixing mode of acoustic phonons in a double T-shaped quantum waveguide at low enough temperatures by using the scattering-matrix method, and analyze the influence from mode conversion. Our results show that the small changes of the geometric parameters can induce different variation on the thermal conductivity, where the effect of the stub height of SH wave is the strongest. Moreover, the mode conversion plays an important role on the thermal conductivity, especially at the higher temperatures, and the coupling effect between two stubs at mixing mode is larger than that at single SH mode.
3 citations
Patent•
28 Nov 1995
TL;DR: In this paper, an intrusion-alarmed optical fiber communication system, where light from two or more sources are launched with a planar channel waveguide launcher into two or multiple modes of a multimode graded-index transmission fiber, is disclosed.
Abstract: An intrusion-alarmed optical fiber communication system, where light from two or more sources are launched with a planar channel waveguide launcher (1) into two or more modes of a multimode graded-index transmission fiber, is disclosed. Input fibers (11, 13, 15) containing the source light waves and the output fibers (17, 19, 21) are in direct contact with the waveguide channels (3, 4, 5, 7, 8). Waveguide channels redistribute the light from the input channels (2, 5, 6) to output channels (3, 4, 5, 7, 8) by rerouting, crossing, merging, and splitting channels. Waveguide launcher precisely launches data light into the fundamental mode and intrusion monitor light into high order modes of a multimode graded-index fiber. Fiber intrusion attenuates light in high order modes, but less of the data in the fundamental mode, thereby forming a basis for the intrusion-alarmed system. Waveguide channel configuration permit other versatile functions such as optical time domain reflectometry and channel feedback stabilization of the diodes.
3 citations
Patent•
08 May 2015
TL;DR: In this article, the authors provide systems and methods associated with mode conversion for electromagnetic field modification, and a solution to a holographic equation provides a sufficiently accurate approximation of a distribution of dielectric constants that can be used to form a mode converting device for use with one or more transmission lines, such as waveguides.
Abstract: The present disclosure provides systems and methods associated with mode conversion for electromagnetic field modification. A mode converting structure (holographic metamaterial) is formed with a distribution of dielectric constants chosen to convert an electromagnetic radiation pattern from a first mode to a second mode to attain a target electromagnetic radiation pattern that is different from the input electromagnetic radiation pattern. A solution to a holographic equation provides a sufficiently accurate approximation of a distribution of dielectric constants that can be used to form a mode converting device for use with one or more transmission lines, such as waveguides. One or more optimization algorithms can be used to improve the efficiency of the mode conversion.
3 citations