PhD6: Haris Ashraf

 Host: Technical University of Denmark (DTU) 

Secondments: Superlum Diodes 

PhD Project: Ultra-narrow linewidth swept sources at 850 nm based on acousto-optical tunable filter (AOTF) technology

Objective of my project:  The objective of my project is modelling of an emission linewidth broadening mechanism in a ring laser fibre cavity with an intra-cavity AOTF as a wavelength-selective element. In addition, this project also focuses on the development of linewidth narrowing to < 5pm FWHM by incorporating frequency-shift compensation techniques to an AOTF-assembly.

Short description of my previous education:

  • BSc Electrical Engineering from Bahauddin Zakariya University, Pakistan
  • Erasmus Mundus Masters in Photonic Integrated Circuits, Sensors, and Networks (PIXNET) from Aston University, UK (1-year); OSAKA University, Japan (3rd Semester), and Scoula Superiore Sant’Anna, Italy (4th Semester).