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Partially coherent optical waves in random gradient fibres

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Abstract

The excitation characteristics and spatial coherence of partially coherent optical waves in gradient fibres are demonstrated for incident light waves radiated from semiconductor lasers and light emitting diodes. Lower modes are efficiently excited in the case of coherent laser beams, while incident waves of low coherence such as lightwaves of LEDs excite higher modes. Pulse propagation of partially coherent optical waves in dispersive gradient fibres is also discussed for random index fluctuations. Mode coupled equations for temporal correlation functions of the electric field that are generalizations of coupled power equations are found. Mode filtering and pulse improvement with a lossy inhomogeneous cladding are described.

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Authors and Affiliations

  1. Department of Electrical Engineering and Electronics, Nagoya University, Nagoya, Japan

    Yasumitsu Miyazaki

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  1. Yasumitsu Miyazaki
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Miyazaki, Y. Partially coherent optical waves in random gradient fibres. Opt Quant Electron 9, 153–165 (1977). https://doi.org/10.1007/BF00619895

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  • DOI: https://doi.org/10.1007/BF00619895

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