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2. http://ieeexplore.ieee.org/document/4653181/
3. https://www.researchgate.net/publication/261321351_Ronia_results_WDM-
based_optical_networks_in_aircraft_applications
4. https://www.researchgate.net/publication/224099279_WDM_Optical_Backbone_Networks_in_aircr
aft_applications_Networking_challenges_and_standards_progress
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pment_for_Aerospace_Applications
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n_free-space_optics_using_wavelength_division_multiplexing [accessed Sep 10, 2017].
7. http://www.moog.com/literature/MCG/MultiplexingAppnote.pdf //WDM in fibre optics
8. https://en.wikipedia.org/wiki/Fiber-optic_communication#Transmitters](https://image.slidesharecdn.com/applicationwdmcompse424763-180221175047/85/Application-WDM-wavelength-division-multiplexing-For-COMPSE-15-320.jpg)
Application WDM(wavelength division multiplexing) For COMPSE
- 1. APPLICATION OF WAVELENGTH DIVISION MULTIPLEXING • Fibre optics. • Aircraft application. • RF avionics.
- 2. Name Ankit - 42 Mohan - 47 Aadarsh - 63 Topics Fibre optics. Aircraft application. RF avionics.
- 4. Because the bandwidth property of optical fibre are well known and make it the media of choice for high-speed data and video applications. However, various forms of multiplexing are required to take advantage of this bandwidth. WDM is one of them. WDM is used to transmit more than one high speed digital data stream on a single optical fibre.
- 6. Through the use of WDM the available capacity of optical fibres is enhanced through the used of parallel channels, where each channel uses a dedicated wavelength of light. This requires a WD multiplexer in the transmitting equipment and a demultiplexer (essentially a spectrometer) in the receiving equipment.
- 7. WDM puts together multiple signals & sends them at the same time along a fibre with transmissions taking at different wavelength. This turns a single fibre into the virtual equivalent of a handful fibres. The most modern of these system allows for much more than a handful of fibres.
- 9. WDM can help achieve future generation Aircraft networks that are 1. High capacity. 2. Flexible. 3. Future-proof. 4. Secure and low cost.
- 10. • Cost : The WDM layer reduces the cost through advancement in technology performance and integration . • Flexibility and scalability : needs WDM components that enable reconfigurability (eg. Tuneable lasers, ROADMS,optical switches) and support a future proof infrastructure. • Reliability : WDM components that can perform enhanced requirements associated with harsh avionics environment . • WDM is also used in Aircraft Application as : 1. Network Definition: Architectures, Protocols, Algorithms, Control and Management associated with insertion of WDM-based backbone layer . 2. Security: WDM networks that cost-effectively support redundancy requirements and multiple independent levels of security (enable MLS policy enforcement.
- 11. 3. RF Avionics.
- 12. Radio frequency (RF) is a measurement representing the oscillation rate of electromagnetic radiation spectrum, or electromagnetic radio waves, from frequencies ranging from 300 GHz to as low as 9 kHz. With the use of antennas and transmitters, an RF field can be used for various types of wireless broadcasting and communications.
- 13. • Optical fiber WDM has many advantages over co-axial cables for the transmission of RF signal in avionics application. • Optical fibre exhibits considerably less loss and can support signals requiring much higher bandwidth which is immune to electromagnetic interference (EMI), and offers significant size and weight savings when compared to coaxial cable. • Due to this the availability of the Internet onboard commercial aircraft adds increased credence to ambitions of delivering new information services during flight . • The onboard implementation of Voice-over-IP (VoIP), high definition television (HDTV), and radio frequency (RF) signals used to transport cellular signals.
- 14. • WDM in RF avionics has been used by the telecommunications industry to increase the digital information carrying capacity of optical fibers. • According to study done by “National Aeronautics and Space Administration” WDM network supporting four analog RF channels has been demonstrated as a successful application that meets the demands of the avionics environment.
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