Dispersion-reduction technique using subcarrier multiplexing

Paul D. Sargis; Ronald E. Haigh; Kent George McCammon

doi:10.1117/12.227835

1 December 1995 Dispersion-reduction technique using subcarrier multiplexing

Paul D. Sargis, Ronald E. Haigh, Kent George McCammon

Proceedings Volume 2614, All-Optical Communication Systems: Architecture, Control, and Network Issues; (1995) https://doi.org/10.1117/12.227835
Event: Photonics East '95, 1995, Philadelphia, PA, United States

Abstract

We have developed a novel dispersion-reduction technique using subcarrier multiplexing which permits the transmission of multiple 2.5 Gbit/s data channels over hundreds of kilometers of conventional fiber-optic cable with negligible dispersion. Using a lithium niobate external modulator having a modulation bandwidth of 20 GHz, we are able to multiplex several high-speed data channels at a single wavelength. At the receiving end, we demultiplex the data and detect each channel using a 2-GHz bandwidth optical detector. All of the hardware in our system consists of off-the-shelf components and can be integrated to reduce the overall cost. We demonstrated our dispersion-reduction technique in a recent field trial by transmitting two 2.5 Gbit/s data channels over 90 km of commercially-installed single-mode fiber, followed by 210 km of spooled fiber. For comparison, we substituted the 300 km of fiber with equivalent optical attenuation. We also ran computer simulations to evaluate link behavior. Technical details and field trial results will be presented.

Citation Download Citation

Paul D. Sargis, Ronald E. Haigh, and Kent George McCammon "Dispersion-reduction technique using subcarrier multiplexing", Proc. SPIE 2614, All-Optical Communication Systems: Architecture, Control, and Network Issues, (1 December 1995); https://doi.org/10.1117/12.227835

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