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Analysis and measurement of modal noise in an optical fibre

Analysis and measurement of modal noise in an optical fibre

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Modal noise in analogue and digital optical fibre systems has been demonstrated to be a significant effect. In this letter, we give some theoretical and experimental results concerning the behaviour of the signal-to-noise ratio in presence of modal noise considering the power from the exit face of a short sample of a graded-index multimode optical fibre.

References

    1. 1)
      • Epworth, R.E.: `The phenomenon of modal noise in analogue and digital fibre systems', Proceedings of the fourth ECOC, 1978, p. 492–501.
    2. 2)
      • Epworth, R.E.: `The phenomenon of modal noise in fibre systems', D1-1, Technical digest from topical meeting, March 1979, Washington, DC.
    3. 3)
      • B. Crosignani , B. Diano , P. di Porto . Speckle-pattern visibility of light transmitted through a multimode optical fiber. J. Opt. Soc. Am. , 1312 - 1313
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      • J.W. Goodman , J.C. Dainty . Statistical properties of laser speckle-pattern, Speckle and related phenomena.
    5. 5)
      • B. Daino , S. Piazzolla , A. Sagnotti . Spatial coherence and index-profiling in optical fibres. Opt. Act.
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      • B. Crosignani , B. Daino , P. di porto . Interference of mode patterns in optical fibres. Opt. Commun.
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