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Proceedings Paper

Design implications of high-speed digital PPM
Author(s): Martin J. N. Sibley
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Paper Abstract

Work in the area of digital pulse position modulation (digital PPM) has shown that this type of modulation can yield sensitivities that are typically 4 - 5 dB better than an equivalent PCM system. Recent experimental work has shown that the receiver in a digital PPM system does not need to have a wide bandwidth. Instead, the bandwidth can be very low so that the receiver is effectively impulsed by the digital PPM signal. The advent of very high speed Si digital ICs, and fast lasers, means that digital PPM can now be used to code gigabit PCM signals. This paper presents original theoretical results for a digital PPM system coding 1 Gbit/s PCM signals into 8 Gbit/s digital PPM signals. The paper also addresses the difficulties that the system designer is likely to encounter, and discusses some possible solutions.

Paper Details

Date Published: 1 November 1993
PDF: 11 pages
Proc. SPIE 2024, Multigigabit Fiber Communication Systems, (1 November 1993); doi: 10.1117/12.161341
Show Author Affiliations
Martin J. N. Sibley, Univ. of Huddersfield (United Kingdom)


Published in SPIE Proceedings Vol. 2024:
Multigigabit Fiber Communication Systems
Leonid G. Kazovsky; Karen Liu, Editor(s)

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