85 Channel DWDM Performance Analysis and Comparison of 9.52 Tb/s Transmission for 3056 Km using DP-QAM16 with Cascaded Fiber Link and Optical Phase Conjugation

• Published in: 2018 International Conference on Computer, Communication, Chemical, Material and Electronic Engineering (IC4ME2) pp. 1 - 4
• Main Authors: Zahir, Ebad, Rahman, Mizanur, Sen, Bibek, Ahmed, Emran, Dhrubo, Arif Razzaque
• Format: Conference Proceeding
• Language: English
• Published: IEEE 01.02.2018
• Subjects: Bit rate; Bit rate-distance product; dense wavelength division multiplexing; dual polarization quadrature amplitude modulation; dual polarization quadrature phase shift keying; Modulation; Optical fiber amplifiers; Optical fiber dispersion; Optical fiber polarization; optical phase conjugation; spectral efficiency; Wavelength division multiplexing
• DOI: 10.1109/IC4ME2.2018.8465650

This paper explores the comparison of four dense wavelength division multiplexing (DWDM) systems using two different modulation schemes. Dual Polarization Quadrature Phase Shift Keying (DP-QPSK) and Dual Polarization 16-State Quadrature Amplitude Modulation (DP-QAM16) along with mid-span optical phase conjugation (OPC) were implemented in a multiple channel transmission system using DWDM employing the entire C-band. For both systems, a total of 85 channels were implemented with 50 GHz channel spacing and laser linewidth of 100kHz. A bit rate of 112 Gb/s was transmitted via each channel. The simulation considered a SMF-28 channel aided with DCF and EDFA. Both bit rate-distance product and spectral efficiency-distance product were compared to show the superiority of performance for the DP-QAM16 based DWDM system. Later, OPC was performed in the middle of the transmission to successfully extend the transmission distance.