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Proceedings Paper

Time-division multiplexing with sampled modulation of laser diode
Author(s): Jose Luis Santos; Faramarz Farahi; Trevor P. Newson; David A. Jackson
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Paper Abstract

A time division multiplexing technique is described in which the frequency of a laser source is modulated with a sampled ramp. The concept is demonstrated with two Mach-Zehnder interferometers in a parallel configuration, separated by a fibre delay line whose length is determined by the characteristics of the sampling waveform. Pseudo-heterodyne processing was used to recover the phase information from each interferometer. The expansion of the technique to a combined frequency and time division multiplexed fibre-optic sensing system is considered.

Paper Details

Date Published: 1 August 1990
PDF: 8 pages
Proc. SPIE 1267, Fiber Optic Sensors IV, (1 August 1990); doi: 10.1117/12.20307
Show Author Affiliations
Jose Luis Santos, Univ. of Porto (Portugal)
Faramarz Farahi, Univ. of Kent/Canterbury (United Kingdom)
Trevor P. Newson, Univ. of Kent/Canterbury (United Kingdom)
David A. Jackson, Univ. of Kent/Canterbury (United Kingdom)

Published in SPIE Proceedings Vol. 1267:
Fiber Optic Sensors IV
Ralf Th. Kersten, Editor(s)

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