Polarization Multiplexed Self-Homodyne Optical Communication System

The increased data traffic for the short-reach optical communication indicates the development of the system that has the capacity to fulfill the demands of the communication system. Several techniques are already developed to have improved results over the conventional communication system. Pulse amplitude modulation (PAM-4) is the very widely used link for optical communication, providing only a degree of freedom and terminating the improvement of the system. The system presented will use the higher-order modulation schemes like quadrature phase-shift keying (QPSK) and 16 level quadrature amplitude modulation (16-QAM) so as to increase the data rates of the system and the property of polarization multiplexing used in the presented system will give the advantage to the local oscillator (LO) less receiver. The polarization control using the constant modulus algorithm works efficiently at the receiver. This polarization multiplexed self-homodyne system gives better performance in terms of data rates and low power consumption.