This task could be fulfilled either through dispersion
management (i.e. by combing alternate lengths of positive and negative dispersion fibers [6]) or by employing so called
nonzero dispersion shifted fibers. Which is designed to leave a small residual average dispersion of 2.6 ps/km.nm to omit
nonlinear propagation effects in the single mode fiber. Chromatic dispersion is a linear effect and inserting a component
with opposite sign could greatly reduce its detrimental effect in G.652 fibers at the 1550 nm band. Out of the several
different technique that have been proposed in the literature, the ones which seem to hold immediate promise could be
classified as dispersion compensating fiber (DCF)[7], chirped fiber Bragg grating (FBG) [8],[9], high order mode (HOM)
fibers[10]. In chirped grating the optical pitch (product between the grating period and the mode effective index) varies along length of the FBG. As a result, resonant reflection frequency of the FBG becomes a function of position along length
of FBG. Thus, each frequency component of a propagating pulse is reflected from a different point along length of chirped
FBG. This is depending on the sign of the chirp; a chirped FBG could impart either a positive or negative dispersion to a
propagating pulse [11]. Since, dispersion compensation is achieved or reflection to access the dispersion corrected pulse.
And optical circulator or a fiber coupler is required as an additional component with associated insertion loss. Further more,
errors in the chirped phase mask periodicity could lead to ripples in group delay with wavelength [12].
In the present study, plastic optical fibers (POFs) are the most promising solution for the "last 100 m to 1000 m" in
high data communications over conventional silica optical fibers for short transmission ranges. The combine the inherent
benefits of all optical fibers such as high bandwidth, total electromagnetic immunity with additionally amazing simplicity
in handling. These benefits make POFs attractive for a wide variety of applications for short transmission range media.