Noise in optical fibre backscatter measurement |
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| Authors: | J L Hullett R D Jeffery |
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| Institution: | (1) Department of Electrical and Electronic Engineering, University of Western Australia, 6009 Nedlands, Western Australia, Australia |
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| Abstract: | We consider in this paper the origin and effect of those sources of noise present in optical fibre backscatter systems which employ large-area semiconductor laser diodes and avalanche photodetectors. Source noise due to the filamentary lasing action of the photodiodes is shown to dominate the near-end performance. The clear superiority of two-point processing over boxcar integration in the presence of source noise is demonstrated. |
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