Photonic integrated light engines for THz spectroscopy with frequency and phase scanning
Universidad Carlos III de Madrid

Photonic integrated light engines for THz spectroscopy with frequency and phase scanning

Objectives:

This research project will develop a photonic integrated THz frequency domain spectrometer THz FDS, using the self-heterodyne technique based on an optical heterodyne source. This research work will contribute to answering TERAOPTICS’ research Challenge III and Challenge V.


Expected Results:

The key expected outcome of this research work is a Terahertz frequency domain spectrometer light engine prototype. The aim is to demonstrate the superior performance of the photonic integrated self-heterodyne technique, since influence of frequency fluctuations of the RF signal are eliminated by using the same LO in Tx and Rx, and phase uncertainties are eliminated by integration. Frequency tuning between 30 GHz to 3 THz will be achieved by changing wavelength difference, and phase scanning over 180º using a phase shifter. The research and development work will mainly address the targeted key THz application “material characterization”.


Planned secondment(s):

  • to FTMC (Dr. Irmantas Kašalynas), M10 ~1 month, on introduction to solid state THz sources and spectroscopic THz imaging
  • to DAS (Dr. Valentin Polo), M30 for 2 months, on using the prototypes for spectroscopic THz imagers