11
OFDM Optical Transmission Systems
This chapter deals with optical transmission employing orthogonal frequency division multiplexing (OFDM) techniques in which several subcarriers are employed to carry partitioned data for transmission over the fiber channel. The channels are frequency multiplexed and orthogonal. The orthogonality comes easily from the generation of the fast Fourier transform (FFT) and inverse fast Fourier transform of the data sequence in the electronic domain. These subcarriers in the baseband are then modulating the optical carrier under some modulation formats that are most appropriate for optical fiber channels. The narrow band of the data of subchannels ensure the low broadening of the pulses, hence combating effectively ...
Get Advanced Digital Optical Communications, 2nd Edition now with the O’Reilly learning platform.
O’Reilly members experience books, live events, courses curated by job role, and more from O’Reilly and nearly 200 top publishers.
