400 MBIT/S OPTICAL REGENERATOR INTEGRATED CIRCUITS

摘要

This paper describes the 400 Mbit/s optical regenerator integrated circuits focusing on their circuit architectures and performance characteristics.Five IC chips (Reshaping IC,Retiming IC,Decision IC,LD driver IC,and DC to DC converter IC) are developed by the high-speed bipolar process whose transistors have a unity gain bandwidth of 5 GHz.The combination of these ICs can achieve submarine and terrestrial longhaul optical transmission at bit rates up to 400 Mbit/s.These ICs are applied to a 400 Mbit/s experimental IC optical repeater.Experimental results show that the IC optical repeater has an optical dynamic range of more than 27 dB without any adjustment and sufficient received average optical power,to maintain a 10-11 error rate,of less than -38 dBm.Experimental results fully satisfy the system requirements, and the feasibility of commercial application is demonstrated.