Chromatic and Polarization Mode Dispersion Compensation using Delay in-Line Filter

In order to operate high speed optical networks efficiently with a sufficiently low BER and minimize the performance degradation caused by optical pulse distortion and broadening, dispersion compensation is needed. Dispersion compensation fiber (DCF) and Fiber Braggs Grating (FBG) are the most widely used element to compensate various types of dispersion effects links, however its performance slows down with the increase in distance and speed of transmission when different nonlinear ties are considered in system design, also when many external factors in the field of installation like temperature, stress, external load etc during installation and operation will affect the fiber optic transmission. Then it is the residual dispersion plays the leading role in signal distortion on field which is not predictable. Here, in this paper new method named delay line filter (DLF) for dispersion compensation, which offers much better performance than other most common methods of compensation, which corrects residual dispersion along with chromatic dispersion, is employed. This method offers almost negligible dispersion and very high value of synchronization by reducing jitter portion in the Eye diagram keeping non-linearity at its limit. This method also offers very high value of Q-factor in long haul optical communication networks.