Hidenori Taga

10Gbit/s, 9100km Soliton Data Transmission With Alternating-Amplitude Solitons Without Inline Soliton Controls

We achieved 10Gbit/s soliton data transmission over 9100km with alternating- amplitude solitons, for the first time. 91Tbit/s-km is the largest rate-distance product for the soliton transmission experiments without inline soliton controls.

10WDM X 10Gbit/s long-distance transmission experiment using a dispersion slope compensator and non-soliton RZ pulse

10Gbit/s, 10WDM transmission experiments using a novel channel by channel in-line dispersion compensator are described. The compensator was realized by using a pair of arrayed waveguide gratings, and the transmission performance was greatly improved.

Capacity upgrade for already-installed undersea cable system combined with advanced network configuration

Capacity upgrade of already installed undersea cable system is attractive from the cost point of view. Advanced technologies such as powerful forward error correction support this upgrade. In this paper, we demonstrate a system capacity upgrade beyond the designed limitation experimentally using the advanced technologies. As a result, a possibility to triple the designed capacity of trans-Atlantic system is shown. In addition, we propose a configuration to improve the transmission efficiency of the network combined with the expansion of the already installed undersea cable system.

Experimental Investigation of Gordon-Haus Limit on Soliton Transmission by Using Optical Short Pulse Generated by an InGaAsP Electroabsorption Modulator

A Soliton transmission system is a promising candidate as a future ultra-long distance and large capacity optical fiber transmission system. Major limiting factor of soliton systems is the timing jitter due to Gordon-Haus effect[1]-[3]. Although the soliton control techniques to reduce the timing jitter both in frequency domain[4]-[8] and time domain[9] have been intensively studied, it is important to demonstrate experimentally the Gordon-Haus limit for the most basic soliton transmission system[10],[11], which has not clearly been shown yet because the maximum transmission length is sometimes affected by other experimental factors such as the initial chirp of the pulse source[6] and/or insufficient pulse separation[7]. Previously, we have proposed a simple technique to generate a nearly transform-limited optical short pulse with variable repetition rate and variable pulse width by using a sinusoidally driven InGaAsP electroabsorption (EA) modulator[12]. In this paper, we investigate and demonstrate an experimental maximum transmission length at 5Gbit/s for the most simple soliton transmission system by using optical short pulses generated by the EA modulator.