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Dispersion division multiplexing in subcarrier modulated data transmission using channel-specific RF fading

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3 Author(s)
Sahin, A.B. ; Dept. of Electr. Eng. Syst., Univ. of Southern California, Los Angeles, CA, USA ; Adamczyk, O.H. ; Willner, A.E.

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.

Published in:

Photonics Technology Letters, IEEE  (Volume:14 ,  Issue: 8 )