Faglige nøgleord: Optics, photonics, communication, intensity, phase, amplification, energy levels, refractive index
Oplæg tilgængeligt på: Dansk og engelsk
About the presentation:
How do we use physics and optics to modulate and transmit data across the entire world? The presentation will dive down in to why optical communication is important, how they fit in to our increasing digital world, hopefully with a focus on UNs sustainable development goals, and how a rudimentary communication system is build, from transmitter to fibres to receivers:
What are the main characteristics of light (intensity, phase, wavelength/frequency)
How can these be used to carry information
How do we modulate intensity and phase in the GHz range
How do we use different wavelengths to send data in parallel
What impairements do we experience in fibres (loss, amplifier noise, dispersion, nonlinearities etc.) and how do we mitigate them?
If time allows, we can dive down in to the modern research topics. Specifically work done on using fibres with multiple cores, or even more exciting, using optical frequency combs (rainbow laser on a chip!) for high efficiency wavelength data division.
Don't be afraid if above sounds too complicated, the level and technical jargon will be adjusted according to the students competencies. This can hopefully be done through the correspondence before the visit.
About me:
I am a Ph.D student at the DTU Electro department, of electrical and photonics engineering. I work on diminishing optical amplifiers in terrestrial fiber-optic cables, by distributing data in to more fibres, and designing high gain, low-noise amplifiers. I have a B.Sc in Physics and Nanotechnology, and a M.Sc in Photonics Engineering, both from DTU.