Optical Communications

Subject description

Comparison of optical fiber with coaxial and wire-line guides. Optical spectrum and properties of light as electromagnetic waves. Optical measurements for determining the length and attenuation of optical fiber (multimode, chromatic and polarization) dispersion. Components of optical-network: splitters, combiners, filters, diffraction gratings, wavelength multiplexers, light-wave isolators, circulators and optical modulators. Design of optical communication link according to the available laser sources and photo detectors. Optical systems for wide area and local area networks.

The subject is taught in programs

Objectives and competences

This course is designed to give an overview of basic concepts and components of optical networks. Basics of light signals transmission through optical fiber. Learning about light sources, receivers and other elements of optical communication link. Understanding the optical measurement procedures and the use of measurement results while planning communication link.

Teaching and learning methods

Lectures, where students are introduced by the theoretical basics of optical communications, and laboratory courses, where students make practical experiments optical systems building blocks.

Expected study results

After successful completion of the course, students should be able to:

-compare the advantages of optical fiber with those of others line communications,

-describe the basic building blocks of optical communication systems,

-explain the mechanism of light propagation in optical fibre,

-measure parameters of optical link, such as attenuation, dispersion, power budget, signal to noise ratio, amplification, bit error rate,

-develope intensity modulated optical communications links of different range

-calculate system parameters on the base of building blocks properties knowledge.

Basic sources and literature

  1. Boštjan Batagelj, Zbirka rešenih nalog iz optičnih komunikacij. Ljubljana: Fakulteta za elektrotehniko, Laboratorij za sevanje in optiko, 2014. http://lso.fe.uni-lj.si/studij/optika_vs/nalogeOK_2_00.pdf.
  2. Boštjan Batagelj, Matjaž Vidmar. Optične komunikacije: Laboratorijske vaje, Ljubljana: Fakulteta za elektrotehniko (2003), ISBN 961-6371-43-6
  3. Boštjan Batagelj, Pasivno optično dostopovno omrežje s časovnim razvrščanjem. 1. izd. Ljubljana: Založba FE in FRI, 2011. 124 str., ilustr. ISBN 978-961-243-195-2
  4. Jožko Budin. Optične komunikacije. 1. izd. Ljubljana: Fakulteta za elektrotehniko in računalništvo, (1993), ISBN 86-7739-044-8
  5. Keigo Iizuka. Elements of Photonics, Wiley (2002), ISBN 0-471-83938-8

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