Title :
Dispersion division multiplexing in subcarrier modulated data transmission using channel-specific RF fading
Author :
Sahin, A.B. ; Adamczyk, O.H. ; Willner, A.E.
Author_Institution :
Dept. of Electr. Eng. Syst., Univ. of Southern California, Los Angeles, CA, USA
Abstract :
We demonstrate a novel all-optical multiplexing technique for doubling the usable spectral bandwidth and number of channels in subcarrier-modulated data transmission over optical fiber. By taking advantage of the chromatic-dispersion-induced RF power fading of a given subcarrier frequency, we transmit two subcarrier channels that occupy the same frequency space. This is accomplished by designing the dispersion of each subcarrier channel in a system such that one subcarrier channel can be >99% faded at the same time that another subcarrier can be recovered. We have successfully transmitted and received two 155-Mb/s data channels that are both located at 7.1 GHz and on the same optical carrier wavelength.
Keywords :
fading channels; microwave photonics; optical fibre communication; optical fibre dispersion; subcarrier multiplexing; 155 Mbit/s; all-optical multiplexing technique; channel-specific RF fading; chromatic-dispersion-induced RF power fading; data channels; dispersion division multiplexing; faded; frequency space; optical carrier wavelength; optical fiber; subcarrier channel dispersion; subcarrier channels; subcarrier frequency; subcarrier modulated data transmission; subcarrier-modulated data transmission; usable spectral bandwidth; Data communication; Fading; Optical fiber polarization; Optical filters; Optical modulation; Optical receivers; Optical signal processing; Optical transmitters; Passive optical networks; Radio frequency;
Journal_Title :
Photonics Technology Letters, IEEE
DOI :
10.1109/LPT.2002.1022014
