Pulse code formats for fiber optical data communication optical science and engineering morris on amazoncom free shipping on qualifying offers book by morris. Pulse code modulation pcm is a method used to digitally represent sampled analog signalsit is the standard form of digital audio in computers compact discs digital telephony and other digital audio applications in a pcm stream the amplitude of the analog signal is sampled regularly at uniform intervals and each sample is quantized to the nearest value within a range of digital steps. Ll digital pulse code modulation pcm meth ods have been the preferred choice of fiber optic transmission technology because of the inherent nonlin earity of optical sources notably for laser diode which makes it difficult to use direct analog modulation tech niques for fiber optic communication systems moreover. Optical engineering ebooks advanced search home 1 december 1995 digital pulse interval and width modulation for optical fiber communications zabih f ghassemlooy illustrating the advantages of this technique compared with conventional pulse code modulation both theoretical and practical results are given showing close agreement. Development of ultrashort pulse fiber lasers for optical communication utilizing semiconductor devices by erik r thoen bs engineering swarthmore college 1995 ms electrical engineering and computer science massachusetts institute of technology 1997 submitted to the department of electrical engineering and computer
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