Title :
Optical fibre digital pulse-position-modulation assuming a Gaussian received pulse shape
Author :
Cryan, R.A. ; Unwin, R.T. ; Garrett, I. ; Sibley, M.J.N. ; Calvert, N.M.
Author_Institution :
Dept. of Electr. & Electron. Eng., Huddersfield Polytech., UK
fDate :
4/1/1990 12:00:00 AM
Abstract :
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
Keywords :
digital communication systems; optical fibres; optical links; optical modulation; pulse position modulation; 1.3 micron; 50 Mbit/s; Gaussian received pulse shape; PIN-BJT receiver; digital PPM coding scheme; fibre channel; optical fibre digital pulse position modulation; optimisation analysis; performance;
Journal_Title :
Optoelectronics, IEE Proceedings J
