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10 Gb/s long-haul experimental systems

Progress of 10 Gb/s technology has been advancing so rapidly that the field deployment of 10 Gb/s long haul systems appears to be in sight. However, the field demonstration of 10 Gb/s long haul transmission has been so far limited to dispersion shifted fibers (DSFs) with negligible chromatic dispersion effect. Since most of the embedded fiber cables are non-DSFs, it is important to demonstrate 10 Gb/s long haul transmission through the embedded standard fiber. This paper presents a successful 5-month long field experiment of 10 Gb/s-360 km transmission over embedded non-DSF cables with a repeater spacing of 120 km (33 dB repeater span loss). The future direction of the high speed long-haul transmission system is also discussed.