You are currently viewing Coherent and powerful generation using THz source arrays
Aritrio Bandyopadhyay is with University of Lille

Coherent and powerful generation using THz source arrays

Researcher: Aritrio Bandyopadhyay

Researcher CV: Aritrio Bandyopadhyay received his bachelor´s degree in Nanotechnology from S.R.M. University, Chennai, India and his master´s degree in Optics and Photonics from Karlsruhe Institute of Technology (KIT), Karlsruhe, Germany. His master´s thesis topic was ultra-broadband microwave amplification using opto-electronic components. During his master´s studies he focused on system and optical components design and simulation of the optical microwave amplifier using OptSim simulation tool and MATLAB,  experimental demonstration of the phase stabilization and feedback loop in the optical microwave amplifier using PID based control system, balanced detection scheme using balanced photodiodes system and laser system, and data analysis, characterization and validation of the optical system using MATLAB. He was a research intern at SICK AG, Reute, Baden-Württemberg, Germany working on laser spectroscopy with gas sensors for optical measurement and analysis. His internship covered setting up and calibrating the laser source and the detector in the optical measurement and sensor system for the detection and measurement of industrial gaseous emissions, characterization and validation of the optical measurement and sensor system, simulation of the system, operation and data analysis using a LabVIEW based control and operation model and MATLAB, standardization of the laser based system according to EU 15267-3 norms. He has experience in optical systems, terahertz photonics, laser physics, opto-electronic devices and nonlinear optics.

Objectives: The purpose of this project is to develop THz sources tackling the actual power limitations within photomixers. This implies both arrayed structures to be developed at THz frequencies and coherent and stable dual-frequency lasers or frequency combs to feed these arrays to enhance the optical to THz conversion ratio. This research work will contribute to answering TERAOPTICS’ research Challenges I and V. The developed devices will be used to demonstrate wireless data links in the THz range.

Expected Results: Powerful and stable THz sources for THz communications at 300 GHz – 1 THz.

Planned secondment(s):

  • to UC3M (Prof. Guillermo Carpintero), M12 for ~ 1 month, for antenna arrays design
  • to TRT (Dr. Daniel Dolfi), M24 for ~ 2 months, for dual laser to enable stable optical beat-notes
  • to UCL (Prof. Cyril Renaud), M34 for ~ 2 months, system-level tests using III-V Photomixers in the THz communication test-benches (common work between UCL and ULIL partners)