Abstract
Optical throughput, namely the product of area times subtending solid, is a useful concept in calculations of light coupling to optical fibers. It is invariant through an optical system, thus providing a simple and elegant way to derive the maximum coupling efficiency between a light source and a fiber, regardless of intervening optics. Because throughput is proportional to the number of modes supported by an optical structure, it also yields the distribution of modal power within a fiber.
In this paper, we illustrate applications of throughput by calculating light coupling into fibers and mode distribution within.
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Hodara, H., Slemon, C. Throughput and coupling in optical fibers. Appl. Sci. Res. 41, 203–221 (1984). https://doi.org/10.1007/BF00382453
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DOI: https://doi.org/10.1007/BF00382453