TY  - BOOK
AU  - Bhagwan, Das
AU  - Department Of Electronic Engineering
TI  - DSP Techniques For Reducing Chromatic Dispersion In Optical Communication System  (ME Theses)
PY  - 2013///
CY  - Nawabshsh
PB  - QUEST
N1  - ABSTRACT
In this research the performance of degraded optical communication system due to
chromatic dispersion is optimized. First an analog test signal is generated and
converted into digital and modulated with 16 QAM by gray code mapping. Through
Split step technique the signal is propagated in the optical fiber link. After 15 Km
travel of signal through simulation the chromatic dispersion is noticed. To reduces
this dispersion the signal is converted in electrical form at end of optical fiber link.
Digital Signal Processing techniques (LMS and FFT algorithm, window) are applied
on dispersed signal to reduces the Chromatic dispersion. Pulse shaping filter (raised
cosine filter) is used which improves the shape of signal. Finally Bit Error Rate and
Eye Diagram are compared before and after the induction of chromatic dispersion into
test signal while travelling in to a fiber optic communication system. Entire work is
performed in Matlab environment and Graphical user Interface is designed in MS
visual studio.
The CD is reduced electronically so it will save the requirement of hardware and
change of optical fiber in comparison to another available method of reduction in
chromatic dispersion which is Dispersion Compensation Fiber (DCF)

UR  - https://tinyurl.com/5fedx6t3
ER  -