Since the event of the first-generation fiber communication systems in the early 80's, the fiber communication technology has developed quickly to attain larger transmission capability and longer transmission distance, partially because of the increasing demand of network. The demand on the increasing system and network capability is expected to stay as additional bandwidth needed technologies like video conference and real-time image transmission emerge. Although global information management systems are capable of transmitting data at high data rates, they are still faced with many serious problems that reduce the performance of the optical transmission system as these Side effects. In our proposed work we found that parameters play a vital role in the development of the link, some of the values are interconnected with each other. E.g., power and frequency of CW laser are dependent on each other so we have to alter these two with utmost care. Specifications are changed under proper supervision so that not even a single one should be raised beyond the threshold value.
From the last 10-15 years Optical Fibers are replacing the conventional ways of data transmission i.e. wires, where an optical fiber is a transparent, hair like cylindrical structure which carries data in form of light signals. As the number of users is growing day by day so as the transmission data, in order to accumulate this high amount of data the traditional wires was not an good option because with the enlargement of users, their needs also expand. One of the need of users is speed, although the wires were transmitting data but the speed was low with other losses in the transmission. Optical fiber transmits data in the form of light, so naturally the speed of data is 3*10 8 m/s (speed of light). In modern world almost everything will rely on optical cabels like that of telephone, television, internet lines etc. This paper focuses on the implementation of the optical network in metro span area that with what parameters, components, losses and efficiency an network working on light signal will handle the large amount of an metropolitan area.
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