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Proceedings Paper

Suboptimum bit synchronization in high-speed communications
Author(s): Atilio M. S. Gameiro; J. Nuno Matos
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Paper Abstract

In this communication we consider the use of a phase-locked loop with signal injection (PLLI) in clock synchronization circuits. We show that by exploring the correlation between the I (in- phase) and Q (quadrature) components of the disturbance, the PLLI allows significant improvements in the output jitter. Numerical results are given for optical communications with RZ signaling which show considerable improvements relatively to a conventional PLL. Experimental measurements obtained with a Colpitts VCO designed to allow current injection are presented that demonstrate the effectiveness of the PLLI in exploring the I-Q correlation.

Paper Details

Date Published: 2 May 1994
PDF: 12 pages
Proc. SPIE 2149, Technologies for Optical Fiber Communications, (2 May 1994); doi: 10.1117/12.175256
Show Author Affiliations
Atilio M. S. Gameiro, Univ. de Aveiro (Portugal)
J. Nuno Matos, Univ. de Aveiro (Portugal)


Published in SPIE Proceedings Vol. 2149:
Technologies for Optical Fiber Communications
Gail J. Brown; Susan R. Sloan; Kenneth D. Pedrotti; Didier J. Decoster; Didier J. Decoster; Joanne S. LaCourse; Yoon-Soo Park; Kenneth D. Pedrotti; Susan R. Sloan, Editor(s)

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