Abstract
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.
© 2013 IEEE
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