LASERs and Light Processing R2a


Credits points: 12

105 hours course attendance; 225 hours self-study

Semester: winter

Language: English

Module type: elective

Module usability: M.Sc. Electrical Communication Engineering, M.Sc. Elektrotechnik

Module duration: one semester

Required qualifications:
Basic knowledge on semiconductor devices, material science, optoelectronics

Competences to be acquired

Understanding the complex interaction of electronic, thermal and optical phenomena in laser diodes

Sustainable knowledge in operation and application of optoelectronic devices

Research and development in the area of optoelectronic components



  • Diffractive elements: 1-, 2- and 3-dimensional gratings, Fresnel lenses and photonic crystals
  • LASERs: gain, rate equations, DFB gratings, spectra, ultrafast lasers, tunable lasers, chirped gratings, microdisc lasers, quantum cascade lasers, DBR mirrors for vertical cavity lasers, VCSELs, blue semiconductor lasers

Learning outcomes

  • To learn basic principles of optoelectronic devices and systems, structure and operating principles of optoelectronic components


  • Lecturer: Hartmut Hillmer and team
  • Teaching method: lecture and exercises
  • SWS: 3
  • Credit points: 6
  • Examination: oral exam (30 minutes)
  • Course identifier: FB16-5266


  • Light processing: switches, splitters, amplifiers, combiners, multiplexers, demultiplexers, beam transformers
  • Optical communication systems: WDM, TDM
  • Experimental modules such as DFB laser diodes, sample stages, optical spectrum analyzers and PC will be assembled to measure laser spectra as a function of injection current and temperature
  • Measured are: spectral shift of different modes of diode lasers with varying injection current and temperature, light power-versus-current characteristics, T0
  • Evaluation, interpretation, documentation and presentation of the measured data

Learning outcomes

  • Learn the huge application potential of optoelectronic devices and photonic tools
  • Learn to solve problems using interdisciplinary analogies
  • Understand the successful solutions of nature as a promising approach for an advanced working engineer
  • Learn how to analyze measured data and how to compare experimental and theoretical results and inferences
  • Learn to efficiently apply different set-up components for optical characterization


  • Lecturer: Hartmut Hillmer and team
  • Teaching method: lab training
  • SWS: 2
  • Credit points: 3
  • Examination: written report on measured data
  • Course identifier: FB16-2282


  • Advanced seminar topics in optoelectronics

Learning outcomes

  • Learn presentation techniques and to obtain presentation practice
  • Learn to structure a talk to optimize the transfer of essentials to the audience


  • Lecturer: Hartmut Hillmer and team
  • Teaching method: seminar
  • SWS: 2
  • Credit points: 3
  • Examination: seminar attendance and presentation
  • Course identifier: FB16-3180