New method of fault detection in optical fibre links

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New method of fault detection in optical fibre links

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© The Institution of Electrical Engineers
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The detection of the signal backscattered by the faults present in an optical fibre is achieved by observing the amplified signal coming out by the rear facet of the exciting laser source. This provides a simple method which employs the same semiconductor laser as a source and an amplifier, thus notably simplifying the procedure for fault detection. Some experimental results are presented.

Inspec keywords: production testing; optical testing; optical fibres; inspection

Other keywords: backscatter signal detection; rear facet of exciting laser source; experimental results; laser source amplifier; inspection; fault detection in optical fibre links; optical fibre testing; simple method

Subjects: Fibre optics and fibre waveguides; Manufacturing processes; Inspection and quality control; Optoelectronics manufacturing; Optical testing techniques; Production facilities and engineering; Fibre optics; Optical communication; Inspection and quality control; Testing

References

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      • D. Marcuse . (1981) , Principles of optical fiber measurements.
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      • J.C. Simon , D.B. Ostrowsky , E. Spitz . (1984) Light amplification in optical communication systems, New directions in guided wave and coherent optics, Vol. 1.
    3. 3)
      • A. Yariv . (1967) , Quantum electronics.
    4. 4)
      • D.D. Cook , F.R. Nash . Gain-induced guiding and astigmatic output beam of GaAs laser. J. Appl. Phys. , 1660 - 1672
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