Gap loss

Gap loss

Gap loss is a type of signal strength loss that occurs in fiber optic transmission when the signal is transferred from one section of fiber or cable to another. cite book|title=Communications Standard Dictionary|author=Martin H. Weik|year=1996|publisher=Springer|isbn=0412083914]

Definition

Specifically, gap loss happens when the signal from one end of a piece of cable is transferred to another, but there is a space, breakage, or gap between them. Since fiber optics transmit data via light the light can cross this gap, but spreads out and is weakened and diffused when it does so.

The light that crosses the gap and enters the next section of cable is broken up. Some of it reflects off, and some will hit the covering of the cable and not enter into the cable. If the gap is small, the gap loss will be small, but if the gap is very large, it may totally corrupt the signal.cite book|title=Free Space Optics: Enabling Optical Connectivity in Today's Networks|author=Heinz Willebrand|coauthors=Baksheesh Ghuman|year=2001|publisher=Sams Publishing|isbn=067232248X]

Gap loss can be caused by many factors, but the most common is poorly fitted multi-sectional fiber optic cables. If there is a break in a directly buried fiber optic line then usually there will simply be a loss of signal. cite book|title=Technician's Guide to Fiber Optics|author=Donald J Sterling|year=2003|edition=4th ed.|publisher=Thomson Delmar Learning|isbn=1401812708]

Effects of gap loss

As a result of signal strength and cohesion being lost (due to the scattering of the light), a fiber optic signal suffering from gap loss is degraded in both quality and throughput.

References

Further reading

*cite book|title=Fiber Optic Reference Guide: a practical guide to the technology|author=David R. Goff|coauthors=Kimberly S. Hansen|edition=3rd ed.|publisher=Focal Press|isbn=0240804864


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