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Optical fibre digital pulse-position-modulation assuming a Gaussian received pulse shape

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5 Author(s)
Cryan, R.A. ; Dept. of Electr. & Electron. Eng., Huddersfield Polytech., UK ; Unwin, R.T. ; Garrett, I. ; Sibley, M.J.N.
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The abundance in bandwidth available in the best monomode fibres may be exchanged for improved receiver sensitivity by employing digital PPM. The paper presents a performance and optimisation analysis for a digital PPM coding scheme operating over a fibre channel employing a PIN-BJT receiver and assuming a Gaussian received pulse shape. The authors present original results for a 50 Mbit/s, 1.3 μm wavelength digital PPM system and conclude that, provided the fibre bandwidth is several times that of the data rate, digital PPM can outperform commercially available PIN-BJT binary PCM systems

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Optoelectronics, IEE Proceedings J  (Volume:137 ,  Issue: 2 )