Study of 100 Gigabit Ethernet Using Carrierless Amplitude/Phase Modulation and Optical OFDM

• Published in: Journal of lightwave technology 2013-05, Vol.31 (9), p.1367-1373
• Main Authors: Wei, J. L., Cunningham, D. G., Penty, R. V., White, I. H.
• Format: Article
• Language: English
• Subjects: Applied sciences; Business and industry local networks; Carrierless amplitude/phase modulation; equalizer; Ethernet networks; Exact sciences and technology; Information, signal and communications theory; Mathematical model; Modulation, demodulation; Multiplexing; Networks and services in france and abroad; OFDM; OFDM modulation; Optical fiber communication; Optical fibers; Optical filters; Optical receivers; Signal and communications theory; Systems, networks and services of telecommunications; Telecommunications; Telecommunications and information theory; Teleprocessing networks. Isdn; Transmission and modulation (techniques and equipments); wavelength division multiplexing
• ISSN: 0733-8724; 1558-2213
• DOI: 10.1109/JLT.2013.2248122

For the first time, simulations have been performed to evaluate and compare the link power budget and power dissipation of 100 Gb/s carrierless amplitude and phase modulation-16/64 (CAP-16/64) and 16/64-quadrature amplitude modulation-orthogonal frequency division multiplexing (16/64-QAM-OFDM) systems over feedforward error correction (FEC) enhanced single mode fiber (SMF) links using an 18.6 GHz bandwidth directly modulated laser, for both single channel and two coarse wavelength division multiplexing (CWDM) channel cases. It is shown that single channel CAP-16 and 16-QAM-OFDM links can successfully support transmission over 5 km SMF, with a power dissipation of ~ 2 times that of a 4 × 25 Gb/s NRZ system. Even when the loss of the optical multiplexing/demultiplexing operations is considered, the use of two CWDM channels supports transmission over 5 km SMF with CAP-16 and 16-QAM-OFDM. The CWDM systems do not increase transceiver power dissipation greatly.