Aerospace

The majority of aircraft communication networks are interconnected using coaxial cables and waveguides. These technologies not only increase installation complexity, they drive up power and weight requirements on both civil and military aircraft.

Eliminating electromagnetic interference between these communications systems and the aircraft's power and sensor networks poses a particular design challenge. A simple, reliable network based on a lightweight photonic power design addresses the need for broadband communications while assuring isolation of sensors and digital avionics systems from EMI.

Photonic power also offers a spark-free means of powering gauges and sensors for fuel monitoring, and can provide a lightweight, reliable means of powering micro-switches to ensure that moving parts, such as doors, are in position.

Photonic power can offer the following cost and performance advantages for avionic system applications:

• Isolated power immune to noise, EMI, and RF interference
• Spark-free power for decreased likelihood of explosion
• EMI-free power source that will not affect sensitive electronic circuitry
• Flexible means of powering electronics and transmitting digital or analog data over same fiber medium
• Reduced installation weight resulting from use of lightweight fiber bundles
• Reduced cost and maintenance by eliminating need for battery back-up power sources