Optical avionic networks

 


Abstract

Deployment of fibre optic networks in aircraft is driven by the need for broadband and high density video to each passenger seat and the requirements for high bandwidth taxiing aids and all weather flying visibility for enhanced pilot observation. The need for a greener aircraft is putting pressure on aircraft manufacturers to reduce the weight and complexity of existing copper cables. A fibre optic network is an obvious solution, but the environment and maintenance issues present some tough challenges. This symposium brings together academics and industrial companies who are working to solve these challenges.

The design of optical networks that form a backbone in the aircraft onto which multiple services can be connected is discussed in several papers. Aircraft operate over wider temperature ranges than terrestrial telecommunications equipment; therefore the standard optical components must be re-designed with more robust materials. Fibre optics offers real advantages for sensor systems that operate in parts of the aircraft that preclude the use of electrical signals.


ON SCALABLE, ADAPTABLE AND FAULT-TOLERANT DESIGNS FOR AN INTEGRATED AVIONICS PHOTONIC NETWORK
João Baptista, GMV, Portugal
The aviation industry is looking for new solutions for embedded networks, which deal with increasing amounts of data. Can photonic components produce reliable and fast-enough networks to harness safety-critical systems? Can generic COTS-based designs produce a scalable and adaptable integrated network, lighter than its copper alternatives, for such systems?


AVIONIC NETWORK DESIGN
Jiang Zhang, Yi An, Michael Berger, Anders Clausen; Technical University of Denmark, Denmark
In order to optimize avionic transport networks, this paper proposes two novel heuristic mechanisms to solve wavelength and fibre assignment problems with systems' physical isolation constrains brought by different avionic systems' diverse Design Assurance Levels.


MODEL-BASED ARCHITECTURAL DESIGN OF AVIONIC OPTICAL NETWORKS IN THE DAPHNE PROJECT
Armin Zimmermann, Karin Schulze; Technische Universität Ilmenau, Germany
Future avionic optical networks should be able to carry all communication links of an aircraft in an integrated way while fulfilling hard non-functional requirements. We show how alternative architectures are modelled and their performance can be evaluated to check for an efficient solution.


APPLICATION OF PASSIVE OPTICAL NETWORKS FOR AIRCRAFT
Michael Pisarik, Ilja Kopacek; SQS Vlaknova optika a.s., Czech Republic
The adaptation of FTTH networks for highly reliable avionic networks is demonstrated. Planar splitters, which are key components for the PON have been developed to meet avionic standards such as RTCA DO 160E(D) .


WIRELESS SERVICES DISTRIBUTION OVER GPON FOR AVIONICS
L. Pessoa, D. Coelho, J. Oliveira, J. Castro and H. Salgado, INESC Porto, Portugal
The integration of wireless and infotainment services over a GPON for avionics is demonstrated. Simultaneous bi-directional transmission of
WiFi, GSM and UWB signals overlaid in the 1550 to 1590 nm band employing reflective EAMs is assessed


WAVELENGTH DIVISION MULTIPLEXED NETWORKS FOR FUTURE AEROSPACE APPLICATIONS
C. Michie1, E. Murphy2, W. Johnstone1,I. Andonovic2, H. White2, N. Aldridge3, A.E. Kelly3; 1University of Strathclyde, Glasgow, UK, 2BAE SYSTEMS Advanced Technology Centre, Bristol, UK, 3University of Glasgow, Glasgow, UK
Recently there has been a significant interest in optical networks for the next generation of avionic communications. Passive Optical Network (PON) technologies offer a ‘commercial off the shelf’ solution for many potential applications. We report here on the challenges in relation to delivering a scalable, data rate transparent PON using reflective semiconductor optical amplifiers to provide a wavelength division multiplexed capability without the need for a wide inventory of wavelength specific devices.



STATE OF THE ART TRANSCEIVERS FOR AIRCRAFT NETWORKS
Alexandre Bacou, Vincent Foucal, François Quentel, Daniel Mousseaux, Christian Claudepierre, Mathias Pez; D-Lightsys, France
Development of a bi-directional single wavelength transceiver on multimode fibre to respond to the avionic requirements in terms of dimensions, weight and power consumption. Performances are presented over a wide temperature range, showing extinction ratio and receiver sensitivity flatten between -40°C and +85°C.


DEVELOPING COTS PARTS FOR AVIONIC APPLICATIONS
Mark Farries, David Smit;, Gooch & Housego Ltd, UK
We describe the transformation of optical components that are used in high volumes in the telecommunications industry into devices that operates over the harsh environments found in an aircraft.


FIELD TERMINATION AND REPAIR FOR FIBRE OPTICAL CABLE ON BOARD AIRCRAFT
Didier Colot; DIAMOND SA, Switzerland
Possible scenarios of connector and cable breakage onboard aircrafts are described. A fusion splice solution for these scenarios is then presented, with relative optical, mechanical and environmental qualification tests


OPTICAL FIBRE SENSOR FOR DETECTING RESIDUAL WATER IN JET FUEL
D.J. Webb1, M. Farries2, W. Zhang1, C. Zhang1, G.D. Peng1; 1Aston University, UK, 2Gooch & Housego, UK
Optical fibre sensors are attractive for potentially explosive environments such as avionic fuel systems. We describe a Bragg grating based fibre sensor capable of detecting water dissolved in jet fuel at the parts per million level.


Chairs: Mark Farries, Technology Advisor, Gooch & Housego Torquay Ltd, UK


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