Short-Reach Optical Communication Systems

Recently, there is an increasing interest in high data rate short reach-optical communication (SR-OC) systems for data center interconnects, highdefinition television and video-on-demand. Carrierless amplitude/phase (CAP) has been adopted as low cost high spectral efficiency modulation scheme. This work proposes the design and implementation of Terabit short reach fiber link using wavelength-division multiplexed (WDM) based multiband (MB) and single-band (SB) CAP modulation for 1.8 Tb/s SR-OC system, where sixteen channels are used, each operating at 112 Gb/s. The performance of MB system at C and O operating bands is investigated for two values of channel spacing 100 and 200 GHz and compared with that of single-band one. The transmission performance of 112 Gb/s hybrid multiband (HMB) CAP/quadrature amplitude modulation (QAM) scheme was addressed over a single mode fiber (SMF). Simulation of HMB CAP-M, M=16,32, and 64 was performed and the results were compared with that of the corresponding SB of the same schemes. The results show that increasing the roll-off factor (r) will improve the bit error rate (BER) performance of the system.

Autorentext

Dr. Majeed received the Ph.D. degree in Electrical(Electronics and Communications) Engineering from University of Baghdad, Iraq in 2017. Currently, she is one of staff in the Electrical Engineering Department, University of Diyala, Iraq. Her research interests include advanced optical communicatitions.