Optoelectronic advancements in analog avionics networking systems

Joseph S. Wilgus

doi:10.1117/12.262673

27 December 1996 Optoelectronic advancements in analog avionics networking systems

Joseph S. Wilgus

Proceedings Volume 2969, Second International Conference on Optical Information Processing; (1996) https://doi.org/10.1117/12.262673
Event: Second International Conference on Optical Information Processing, 1996, St. Petersburg, Russian Federation

Abstract

Over the past two decades, the types of networks used in both commercial and military systems to route information throughout a designated platform have essentially remained unchanged. Traditionally, digital networks have been used to route low data rate, low-bandwidth signals usually not exceeding 2 Ghz, amongst a variety of sensors, digital and signal processors and video displays. On the other hand, analog networks have been responsible for routing broad- banded radio-frequency signals, those ranging from 2 Ghz to well beyond 100 Ghz, between a specific antenna aperture and its designated receiver type. Current analog systems use one of either two approaches to transfer this signal information. The first approach uses microwave waveguides. This design is very efficient, albeit bulky, and has typically been used in ground-based systems. HOwever, it does not lend itself very well to airborne platforms where size and weight constraint are of primary concern. The second approach uses coaxial cable, which tends to exhibit excessive loss at higher frequencies and is much heavier than optical fiber. Like its counterpart the microwave waveguide, it too is not ideally suited for airborne platforms. However, up to now it has been the technology of choice for this particular application. This has led to other alternatives to be sought. With recent advancements being made in optoelectronics, optical fiber is becoming a viable alternative to the above mentioned approaches. It is the intent of this paper to identify airborne applications for photonic technology in analog networks and discuss the needed building blocks to implement this particular type of system.

Citation Download Citation

Joseph S. Wilgus "Optoelectronic advancements in analog avionics networking systems", Proc. SPIE 2969, Second International Conference on Optical Information Processing, (27 December 1996); https://doi.org/10.1117/12.262673

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KEYWORDS

Switches

Analog electronics

Antennas

Signal processing

Optical fibers

Optical networks

Avionic systems

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