Applications Of Time And Wavelength Division Multiplexing To Digital Optical Code Plates

D. Varshneya; W. L. Glomb Jr.

doi:10.1117/12.942509

23 March 1988 Applications Of Time And Wavelength Division Multiplexing To Digital Optical Code Plates

D. Varshneya, W. L. Glomb Jr.

Proceedings Volume 0838, Fiber Optic and Laser Sensors V; (1988) https://doi.org/10.1117/12.942509
Event: Cambridge Symposium on Fiber Optics and Integrated Optoelectronics, 1987, Cambridge, MA, United States

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.

Citation Download Citation

D. Varshneya and W. L. Glomb Jr. "Applications Of Time And Wavelength Division Multiplexing To Digital Optical Code Plates", Proc. SPIE 0838, Fiber Optic and Laser Sensors V, (23 March 1988); https://doi.org/10.1117/12.942509

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