Time-division multiplexed topology for michelson interferometer sensors to measure low-frequency measurands

McGarrity, C. and Jackson, D.A. (1994) Time-division multiplexed topology for michelson interferometer sensors to measure low-frequency measurands. Optics Communications, 104 (4-6). pp. 280-284. ISSN 0030-4018. (The full text of this publication is not available from this repository)

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Abstract

A time division multiplexed topology capable of supporting eight sensors has been implemented using four Michelson interferometer sensor simulators and a transceiver link. The topology is illuminated by a laser diode and is designed to measure nonstatic measurands such as vibration. The topology ensures that the laser diode is adequately isolated from the light returning from the network. The phase sensitivity of the sensors is limited by the phase noise of the laser. Noise due to Rayleigh backscattered light mixing with the signal is significantly smaller than this phase noise. A demodulated sensitivity of 25 mu rad/root Hz at 1 kHz has been achieved using the ''differentiate-cross-multiply'' technique.

Item Type: Article
Subjects: Q Science > QC Physics
Divisions: Faculties > Science Technology and Medical Studies > School of Physical Sciences > Optics
Depositing User: O.O. Odanye
Date Deposited: 07 Jul 2009 17:57
Last Modified: 17 Jul 2012 10:08
Resource URI: http://kar.kent.ac.uk/id/eprint/19890 (The current URI for this page, for reference purposes)
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