Bit Error Rate Analysis of Optical Data Links for Computer Communications
Parallel optical data links have attracted substantial attention in recent years as a potential means for overcoming the electrical interconnections bottleneck in advanced computer systems 1,2. Optical interconnect technology offers advantages such as high bandwidth-distance product, superior immunity to electromagnetic interference and absence of ground-loop noise. A typical parallel optical data link consists of a transmitter array, a free-space or guided-wave interconnection medium and a receiver array. These links can be used for intra- and inter-computer interconnections. In this paper, we study the bit error rate (BER), one of the main performance criteria of parallel optical data links. In particular, we present details of BER analysis and techniques for experimental measurement of very low BER levels (< 10-15) in optical data links. These techniques are valid in the presence of BER floors.
KeywordsError Rate Analysis Sinusoidal Interference Main Performance Criterion Laser Intensity Noise Optical Data Link
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