Frank W. Kerfoot

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Two highly accurate automated network analyzers have been developed to cover the frequency ranges of 0.9 to 4.2 GHz and 3.7 to 12.4 GHz. In addition to the directly measured quantities of insertion loss and phase, the analyzers provide insertion delay, impedance, and two-port parameters as derived quantities. The functional architecture of the systems is(More)
Undersea lightwave transmission systems have made tremendous progress in both capacity and network architecture since their introduction in the mid 1980s. Capacities have grown from 280 Mb/s in the first systems to 40 Gb/s or more for the fourth-generation systems being installed today using wavelength division multiplexing (WDM). Network architectures have(More)
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