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Proceedings Paper

Maximum intensity noise induced by multiple-path interference from fiber-connector reflections
Author(s): Zhige Chen; Zeming Jiang; Zhaoming Huang; Hui Song; Xiaolei Jiang
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Paper Abstract

A concept of Post-fiber-transmission Intensity Noise or Interference Intensity Noise (IIN) is proposed and a formula estimate of maximum Relative Intensity Noise (RIN) for a CATV system induced by laser phase noise and multiple-path- interference (MPI) from fibre-connector reflections has been given out through theoretical analysis and experiment measurement. It is turned out that maximum RIN increases with total number of unqualified connectors and their light reflection coefficients, but decreases with RF frequency increase. For a fixed-length fibre jumper ended with two unqualified connectors, there exists a worst RIN dependent on laser linewidth and RF frequency, also exists another worst RIN dependent on RF frequency and fibre length for a given laser linewidth. It is concluded, only from the point view of depressing RIN induced by connector reflections, that lasers having linewidth within 30-300 MHz had better not be used. Furthermore if no connectors with slant connective end-surface can be got at hand, very limited total number, less than about 4 for example, of fibre connectors with flat connective end-surface can be unquestionably used.

Paper Details

Date Published: 6 August 1998
PDF: 5 pages
Proc. SPIE 3552, Fiber Optic Components and Optical Communication II, (6 August 1998); doi: 10.1117/12.318016
Show Author Affiliations
Zhige Chen, Shanghai Information Industry Co., Ltd. (China)
Zeming Jiang, Shanghai Univ. (China)
Zhaoming Huang, Shanghai Univ. (China)
Hui Song, Shanghai Information Industry Co., Ltd. (China)
Xiaolei Jiang, Shanghai Univ. (China)

Published in SPIE Proceedings Vol. 3552:
Fiber Optic Components and Optical Communication II
Shuisheng Jian; Franklin F. Tong; Reinhard Maerz, Editor(s)

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