Abstract
We present a strategy for the dispersion-compensated, flexible upgrading of existing 1310 nm-optimized interoffice fiber networks by using an optical equalizer fiber for dispersion compensation and an Erbium-doped fiber amplifier for loss compensation. This allows an upgrade to higher network capacities including long-distance, multi-Gb/s SONET systems as required in future survivable inter-office networks. The feasibility of this concept was demonstrated with simultaneous, dispersion-compensated transmission at both 1310 and 1550 nm wavelengths over a 60 km conventional 1310nm-optimized single-mode fiber (SMF), as well as with dispersion-compensated 1550 nm transmission over an 110 km conventional SMF at 2.5 Gb/s.
© 1992 Optical Society of America
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