Some design aspects of long-haul digital submarine optical fibre systems

Following a table of typical system parameters, this paper seeks to address specific design aspects of long-haul digital submarine systems utilizing optical fibre bearer pairs. These aspects include · Reliability · Error performance specification and design philosophy · Receiver design, noise and intersymbol interference considerations · Jitter accumulation and control · Telemetry, supervision and fault location No such systems have yet been deployed other than for field trial but development is well advanced. The first systems should be deployed during the latter half of 1984.