Experience

EUNCET

• Spain
• Higher Education
• 1 - 100 Employee

• Professora

  • Sep 2021 - Present



UPC School (Universitat Politècnica de Catalunya)

• Spain
• Higher Education
• 200 - 300 Employee

• Investigadora

  • May 2017 - Nov 2021

• Investigadora

  • May 2017 - Nov 2021

  n this thesis, we propose to apply mechanism of light-matter interaction to precisely control space-time and improve the quality of semiconductor laser emission. . For this reason, this thesis proposes different strategies for exercising control over the dynamics and emission of broad aperture semiconductor lasers without compromising their compact design. We developed a full (2+1)-dimensional spatial and temporal model to perform numerical analysis, including a transverse and longitudinal dimension and a time-evolution variable of the electric field and carriers. This model is used throughout all the thesis with the proper modifications and is previously checked and compared numerical results to those of an experimental system.First, we propose the introduction of non-Hermitic potentials with index modulations and phase gain in semiconductor lasers to achieve spatial and temporal stabilization. Next, we introduce non-hermitic invariant systems under parity (P) symmetry and temporal inversion (T), which are called PT-symmetric systems and we locate the light by achieving a higher output power and a higher quality output beam, thanks to the asymmetric coupling in each half, directed towards the central axis of symmetry.Finally, we adopt this proposal to broad-area laser diode arrays (also called bars) to achieve asymmetric coupling between neighboring lasers. We are taking advantage of symmetry coupling breaking, achieving a direction of energy to the central laser. This proposal achieves a stable and localized emission that would enhance direct coupling to optical fibers. Show less



ESCAC - Escola Superior de Cinema i Audiovisuals de Catalunya

• Spain
• Movies and Sound Recording
• 1 - 100 Employee

• Professora

  • Sep 2020 - Feb 2021