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Proceedings Paper

Applications Of Time And Wavelength Division Multiplexing To Digital Optical Code Plates
Author(s): D. Varshneya; W. L. Glomb
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Paper Abstract

This paper discusses the application of pulse time division multiplexing and wavelength division multiplexing to reflective digital optical code plates for sensing position on aircraft. Particular attention is given to temperature drifts and component tolerances in the optical power budgets. Both wavelength and time division multiplexing have been proposed for referencing analog ratiometric sensors and for multiplexing digital optical signals such as from a reflective code plate or an array of discrete sensors. The use of either technique in these applications is limited by the aircraft environment, particularly by the temperature induced drift of the source and optical component properties. The paper concludes that each approach is constrained by environmental effects and small power budget. In addition, the performance of the reflective WDM system is strongly dependent on the number of connectors used in the interconnect fiber. Development of either of these sensor concepts requires careful design and evaluation to resolve these problems.

Paper Details

Date Published: 23 March 1988
PDF: 6 pages
Proc. SPIE 0838, Fiber Optic and Laser Sensors V, (23 March 1988); doi: 10.1117/12.942509
Show Author Affiliations
D. Varshneya, Teledyne Ryan Electronics (United States)
W. L. Glomb, United Technologies Research Center (United States)

Published in SPIE Proceedings Vol. 0838:
Fiber Optic and Laser Sensors V
Ramon P. DePaula; Eric Udd, Editor(s)

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