• Diptendu Mitra

In this paper a review on some of the most important works ranging from Frequency Offset Tracing, FOE(Frequency Offset Estimation) to Flexi-grid long haul optical systems has been done. With the growing demands for higher data speed and more data quantity it is required that the receiver for communication systems is very well equipped with the latest and upgraded new technologies where a filter is made intelligent enough to trace the frequency drift, estimate frequency and phase offset and accordingly adjust it’s central frequency and also reconfigure the essential bandwidth as per needed for any modulation format(i.e; format-transparent) and at any bit rate.

Fragmentation and de-fragmentation, De-fragmentation techniques, Frequency Offset(FO), Flexi-grid, Frequency Offset Tracing, frequency offset drift, MAP, Intradyne, Homodyne, Heterodyne and Spectrum Sweep(Scan).

"A Brief Study on Adaptable, Flexible, Tunable, Traceable and Self-Sustainable Smart Optical Systems", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.5, Issue 12, page no.586-615, December-2018, Available :http://www.jetir.org/papers/JETIR1812891.pdf

"A Brief Study on Adaptable, Flexible, Tunable, Traceable and Self-Sustainable Smart Optical Systems", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.5, Issue 12, page no. pp586-615, December-2018, Available at : http://www.jetir.org/papers/JETIR1812891.pdf