Front. Optoelectron.

Influence of optical filtering on transmission capacity in single mode fiber communications

M. Venkata SUDHAKAR1,*(),Y. Mallikarjuna REDDY2,B. Prabhakara RAO1

1. Department of Electronics and Communication Engineering, Jawaharlal Nehru Technological (JNT) University, Kakinada, AP, India 2. Department of Electronics and Communication Engineering, Vasireddy Venkatadri Institute of Technology, Guntur, AP, India

Abstract

This paper presents the design and analysis of optical filters that are placed at the output of directly modulated vertical cavity surface emitting laser (VCSEL) in the process of inexpensive transmitter’s implementation for upcoming generation optical access network. Generation of non return to zero (NRZ) optical signal from the transmitter for 110 km error-free single mode fiber (SMF) transmission at 10 Gb/s with bit error rate (BER) of 10^-30 in the absence of the external modulator and encoder was proposed. Effects of super-Gaussian and Butterworth optical filters at VCSEL output were demonstrated to maximize performance of SMF optical systems without need of any dispersion compensation technique.