Paper 14092-17
Paper 14092-17
Four-wave mixing in an optically injected feedback-controlled Fabry-Perot laser for tunable THz signal generation
14 April 2026 • 09:40 - 10:00 CEST | Churchill (Niveau/Level 1)
Abstract
We investigate optical injection of a continuous-wave laser into a Fabry–Perot cavity laser integrated on InP to study four-wave mixing (FWM) for potential THz carrier generation. The injection induces equidistant FWM sidebands separated by a THz-range frequency offset with a side-mode suppression ratio exceeding 20 dB. Beatnote analysis with a narrow-linewidth reference laser reveals kHz-level linewidths for both the injected tone and FWM sidebands, confirming coherent operation.
Presenter
Vrije Univ. Brussel (Belgium)
Martin Virte is a professor with the Brussels Photonics (B-PHOT) group of the Vrije Universiteit Brussel (VUB). He graduated as an engineer from the French “Grande Ecole” Supélec (now CentraleSupélec) in 2011. He then received his PhD in engineering in 2014 with the highest honours as part of a joint PhD program between VUB and Supélec. In 2015, he received a 3-year post-doctoral fellowship from the Research Foundation – Flanders (FWO) to pursue his research work at B-PHOT VUB. He became a research professor at the VUB three years later. Two years later, in 2020, he received a prestigious Starting Grant from the European Research Council (ERC) and was appointed professor at the Vrije Universiteit Brussel the same year.