Biomedical Engineering Reference
In-Depth Information
Fiber array
(on Si chip)
FIGURE 2.26
Diagram of a 4 × 4 directional coupler switch matrix.
the wider bandwidth of the fiber without an increase in attenuation is a clear
advantage. In addition, significant size reductions and greater resistance
to long-term environmental degradation provide advantages to the fiber
medium.
2.5 OpticalInterconnectsforLarge-ScaleIntegrated
CircuitsandFiberTransmissionSystems
2.5.1 Introduction
The limitations of conventional interconnects and switching technology
are rapidly becoming critical issues in the throughput of data within the
high-speed signal processors using LSI chips or GaAs-integrated circuits.
The problems associated with transmission of Gb/s data must be addressed
when designing integrated systems utilizing electrical interconnects and
conventional switching technology. The performance of electrical inter-
connects at high data rates is adversely affected by increases in capaci-
tance and reflections due to impedance mismatches. Optical interconnect
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