Time-division multiplexing with sampled modulation of laser diode
Autor: | David A. Jackson, T.P. Newson, Faramarz Farahi, Jose Luis Santos |
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Rok vydání: | 1990 |
Předmět: | |
Zdroj: | Fiber Optic Sensors IV. |
ISSN: | 0277-786X |
DOI: | 10.1117/12.20307 |
Popis: | 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. |
Databáze: | OpenAIRE |
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