HHI service integrated optical broadband communications system: results of a long-time operation and review

The large service integrated optical broadband communications system of the Heinrich-Hertz-Institut in Berlin, Germany has run a long-duration test during the last two years. The paper deals with the experiences gained during this long-time operation, reports on corresponding measurements of the optical components, bit-error rates and phase jitter, as well as measurements of the analogue optical subscriber line, and, finally, reviews the system´s concept.