Open AccessSpectral characterisation of offset pulse position modulation
Author(s) -
Ray Indrani,
Sibley Martin J. N.,
Mather Peter J.
Publication year - 2015
Publication title -
iet optoelectronics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.379
H-Index - 42
eISSN - 1751-8776
pISSN - 1751-8768
DOI - 10.1049/iet-opt.2014.0035
Subject(s) - pulse position modulation , offset (computer science) , frequency offset , keying , optics , telecommunications , modulation (music) , amplitude and phase shift keying , computer science , spectral analysis , physics , electronic engineering , pulse amplitude modulation , materials science , pulse (music) , acoustics , engineering , orthogonal frequency division multiplexing , spectroscopy , channel (broadcasting) , quantum mechanics , detector , programming language
Offset pulse position modulation (PPM) has been shown to be more attractive for use in optical fibre channels than on–off keying, digital PPM and in some respects multiple PPM in some applications. However the spectral analysis of this coding scheme has not yet been addressed. In this study the authors present, for the first time, the spectral characteristics of an offset PPM sequence. The results show strong frequency components at the frame rate and, if return‐to‐zero pulses are used, the slot rate.