Application WDM(wavelength division multiplexing) For COMPSE

Application of WDM :
1)Fibre optics
2)Aircraft application
3)RF avionics

1. Application of wavelength division multiplexing Fibre optics. Aircraft application. RF avionics.

2. Group members Name Ankit - 42 Mohan - 47 Aadarsh - 63 Topics Fibre optics. Aircraft application. RF avionics.

3. Application of wavelength division multiplexing Fibre optics.

4. Why Wdm is commonly used in Fibre optics : 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.

5. Application of WDM in fibre optics:

6. Applications.. 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. Applications… 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.

8. Application of wavelength division multiplexing 2. Aircraft Application.

9. How wdm can be used in Aircraft application WDM can help achieve future generation Aircraft networks that are High capacity. Flexible. Future-proof. Secure and low cost.

10. Application of WDM in aircraft application 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 : Network Definition : Architectures, Protocols, Algorithms, Control and Management associated with insertion of WDM-based backbone layer . Security : WDM networks that cost-effectively support redundancy requirements and multiple independent levels of security (enable MLS policy enforcement.

11. Application of wavelength division multiplexing 3. RF Avionics .

12. What is RF ? 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. How wavelength division multiplexing can be used in RF avionics 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. Application of WDM in RF avionics 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.

15. References…… http://ieeexplore.ieee.org/Xplore/guesthome.jsp http://ieeexplore.ieee.org/document/4653181/ https://www.researchgate.net/publication/261321351_Ronia_results_WDM-based_optical_networks_in_aircraft_applications https://www.researchgate.net/publication/224099279_WDM_Optical_Backbone_Networks_in_aircraft_applications_Networking_challenges_and_standards_progress https://www.researchgate.net/publication/224650945_Advances_in_WDM_LAN_Standards_Development_for_Aerospace_Applications https://www.researchgate.net/publication/252536971_The_transmission_of_multiple_RF_signals_in_free-space_optics_using_wavelength_division_multiplexing [accessed Sep 10, 2017]. http://www.moog.com/literature/MCG/MultiplexingAppnote.pdf //WDM in fibre optics https://en.wikipedia.org/wiki/Fiber-optic_communication#Transmitters

16. Thank you !