1. High initial cost


  • The intial cost of installation or setting up cost is very high compared to all other

2.  Maintenance and repaiding cost





  • The maintenance and repaiding of fiber optic systems is not only difficult but expensive

3.  Jointing and test procedures


  • Since optical fibers are of very small size. The fiber joining process is very constly and requires skilled manpower.

4.  Tensile stress


  • Optical fibers are more susceptible to buckling, bending and tensile stress than copper This leades to restricted practice to use optical fiber technology to premises and floor backbones with a few interfaces to the copper cables.

5.  Short links


  • Eventhough optical fiber calbes are inexpensive, it is still not cost effective to replace every small conventional connector (e.g. between computers and peripherals), as the price of optoelectronic transducers are very

6.  Fiber losses


  • The amount of optical fiber available to the photodetector at the end of fiber length depends on various fiber losses such as scattering, dispersion, attenuation and