Cookie usage policy

The website of the University Carlos III of Madrid use its own cookies and third-party cookies to improve our services by analyzing their browsing habits. By continuing navigation, we understand that it accepts our cookie policy. "Usage rules"

Optoelectronics and Laser Technology Group (GOTL)

Group head:
Horacio Lamela Rivera, Guillermo Carpintero del Barrio
Group web:
Optoelectronics and Laser Technology Group (GOTL)


The Optoelectronic and Laser Technology Group (GOTL) has a vast experience in semiconductor laser systems and photonic instrumentation for applications that spans from ultra-broadband wireless telecommunication to novel biomedical imaging applications.

GOTL research in Millimetre and Terahertz-wave photonics, led by Prof. Guillermo Carpintero, has pioneered the use of Photonic Integrated Circuits (PICs). Our main field of application are broadband wireless communication links, using carrier waves in the millimetre wave range for beyond 5G mobile networks. We are also addressing the use of microwave photonics techniques to enable test  instrumentation to reach the Terahertz range. Our research is contributing to the development of the field of Integrated Microwave Photonics (iMWP).

GOTL research in biomedical optics, led by Prof. Horacio Lamela, is focused on the development photonics systems for optoacoustic tomography, a new biomedical imaging technique that combines the specificity and the contrast of the optical imaging techniques with the resolution of ultrasound imaging. The group is developing new compact high power short pulsed diode laser systems for optoacoustic imaging, optoacoustic spectroscopy and ultrawideband ultrasound generation, as well as high sensitivity optical fiber ultrasound probes.

GOTL was founded by Prof. Horacio Lamela when he joined UC3M in 1992, when UC3M Engineering School had just been created. Prof. Lamela was the first permanent professor in the area of Electronic Technology, and GOTL was the first research group created in the department. Today, the GOTL is led by its two full professors, Prof. Horacio Lamela and Prof. Guillermo Carpintero.

Lines of research

  • Integrated microwave photonics, through design, implementation and characterization of Photonic Integrated Circuits (PICs) for generation of signals with frequencies ranging from the microwave up to the Terahertz range.
  • Ultra-broadband wireless communications using photonic-enabled transmitters and electronic Schottky receivers.
  • Design, modelling and characterization of photonic integrated semiconductor lasers for , both with Continuous-Wave (CW) emission and mode-locked.
  • Photonic driven mm-wave and Terahertz phase array antennas  for beam steering in 5G applications.
  • Designing and developing of diode laser systems for high power nanosecond pulse generation using high power diode lasers (HPDL) and high current short pulse drivers.
  • Optoacoustic imaging systems for biomedical applications based on  high power diode lasers for ultrasound generation and optical fiber sensors for ultrasound detection.
  • Ultrabroadband  ultrasound generation for biomedical imaging using high power diode lasers.
  • Interferometric instrumentation systems with high sensitivity optical fibres for the measurement of ultrasounds, vibrations and temperatures.

Contact email:


  • Ali, Muhsin
  • Carpintero del Barrio, Guillermo
  • César Cuello, Jessica
  • Gallego Cabo, Daniel
  • Guzmán Martínez, Robinson Cruzoe
  • Lamela Rivera, Horacio
  • Sánchez Rodas, Miguel
  • Spanidou, Kalliopi
  • Zarzuelo García, Alberto
Links of interest