I. Introduction
In 1858, the first electrical communication was installed between North-America and Europe through a transatlantic telegraph cable [1]. More than 3200 km of cable, weighing nearly 550 kg/km, were deployed at a depth of often more than 3 km. About 150 years later, the techniques to deploy and protect the cables remain similar. A lot of efforts have been devoted to develop the connectors, which are the weak point of most electrical cables [2], to improve their connectivity and water tightness, simplify their manufacturing process, and decrease their costs.