A Review of Digital Modulation formats and OF...

A Review of Digital Modulation formats and OFDM in Optical Communication

Author Name : Preeti, Taruna Sikka, Deepak Sharma

ABSTRACT: The increasing demand for high-capacity multimedia services in real-time demands a huge bandwidth for effective and efficient communication. Optical Fiber communication provides a long term solution for this ever increasing traffic demand. Optical communication based upon digital modulation provides greater information capacity, compatibility with multiple digital data services, and also provides higher data security, better quality communication. The main objective of this paper is to give an overview of the digital modulation techniques used in optical communication systems such as amplitude shift keying (ASK), Quadrature phase shift keying (QPSK), binary phase shift keying (BPSK), frequency shift Keying (FSK) .In this paper we have also presented an introduction to Orthogonal Frequency Division Multiplexing