Tampere University

Tampere University (TAU) was created in January 2019 by the merger of the University of Tampere and Tampere University of Technology, which were joining forces to create a new foundation-based university. TAU is one of the most multidisciplinary universities in Finland and the second-largest university, with technology, health and society as priority areas. Doctoral training takes place in the University’s doctoral programmes of seven academic faculties. Special attention in doctoral training is paid to internationality and methodology, working life and researcher skills.

The research and education in NETLAS will be coordinated by the Optoelectronics Research Centre (ORC), a research team operating as part of Physics Unit in the Faculty of Engineering and Natural Sciences. ORC is one of the largest academic research groups focused on optoelectronics technology and applications, with core competence in molecular beam epitaxy (MBE) for the fabrication of GaAs-, InP-, and GaSb-based optoelectronics devices, semiconductor laser technology and applications, and photovoltaics. ORC’s vision is powered by vertical integration of multidisciplinary research in material science, new photonics technologies, and emerging applications. The research strategy is devised on long-term goals with a high potential for societal impact, transcending borders from fundamental science to entrepreneurship. The ORC has been exceptionally successful in transferring these research results, technologies, and innovations to industry and played a seminal role in the creation of the Finnish optoelectronics industry.

TAU contribution to the NETLAS will be focused on the development of novel gain structures to visible and mid-infrared OCT light sources, including both vertical and edge emitting architectures. The research work is largely experimental involving clean-room processing of optoelectronics structures and development of semiconductor laser technologies with electrical and optical pumping. Part of the work will also include design skills for semiconductor engineering and laser physics.

TAU offers a large portfolio of optics and photonics postgraduate courses with teaching in English as well numerous opportunities for transferable skills teaching. 


Prof. Mircea Guina

Dr. Hermann Kahle

Dr. Jukka Viheriälä


  • “GaSb diode lasers tunable around 2.6 μm using silicon photonics resonators or externaldiffractive gratings”, Ojanen, S. P., Viheriälä, J., Cherchi, M., Zia, N., Koivusalo, E., Karioja, P. & Guina, M., Applied Physics Letters. 116, 8, 081105 (2020), https://doi.org/10.1063/1.5140062
  • “Power scaling and thermal lensing in 825 nm emitting membrane external-cavity surface-emitting lasers”, Phung, H-M., Kahle, H., Penttinen, J-P., Rajala, P., Ranta, S. & Guina, M., Optics Letters. 45, 2, p. 547-550 4 p. (2020), https://doi.org/10.1364/OL.382377
  • High-power single mode GaSb-based 2 μm superluminescent diode with double-pass gain”, Zia, N., Viheriälä, J., Koivusalo, E. & Guina, M., , Appl. Phys. Lett. 115, 23, 231106 (2019), https://doi.org/10.1063/1.5127407
  • “High power GaInNAs superluminescent diodes emitting over 400 mW in the 1.2 μm wavelength range”, Aho, A., Viheriälä, J., Virtanen, H., Zia, N., Isoaho, R. & Guina, M., Applied Physics Letters. 115, 8, 4 p., 081104 (2019), https://doi.org/10.1063/1.5111012
  • “AlGaAs/AlGaInP VECSELs with Direct Emission at 740-770 nm”, Nechay, K., Kahle, H., Penttinen, J-P., Rajala, P., Tukiainen, A., Ranta, S. & Guina, M., , IEEE Photonics Technology Letters. 31, 15, p. 1245-1248 (2019), 10.1109/LPT.2019.2924289