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Wavelength-tunable semiconductor lasers are key components for dense-wavelength-division-multiplexing (DWDM) optical communication systems. Single mode laser arrays are one option to produce a tunable laser. Recently, such a laser array based on buried distributed feedback gratings has reported over 40 nm tuning range [1]. However, fabricating these DFB laser arrays requires both high resolution processing...
Depending on the angle of arrivals (AOAs) and other channel characteristics, different types of correlation appear among acoustic pressure and acoustic particle velocity channels. To have accurate channel models for communication system design, a complete set of correlations are derived in this paper for a vector sensor array. In addition to exact results, accurate yet less complex approximations...
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