| Autor: |
Kenichi Komagata, Filippos Kapsalidis, Thomas Südmeyer, Valentin J. Wittwer, Marin Hamrouni, Atif Shehzad, Pierre Jouy, M. Beck, Stéphane Schilt, Andreas Hugi, Jérôme Faist, Renaud Matthey |
| Rok vydání: |
2021 |
| Předmět: |
|
| Zdroj: |
2021 Conference on Lasers and Electro-Optics Europe & European Quantum Electronics Conference (CLEO/Europe-EQEC). |
| DOI: |
10.1109/cleo/europe-eqec52157.2021.9542065 |
| Popis: |
Mid-infrared (MIR) quantum cascade laser (QCL) frequency combs are a convenient technology for MIR dual comb spectroscopy. A common method to increase the signal-to-noise ratio in this type of applications is by mutual stabilization of the frequency combs. The mode spacing in a QCL comb can be injection-locked via electrical injection of a radio-frequency close to the repetition rate ( f rep ) [1] . The control of the comb offset frequency f o is typically done by adjusting the driving current or the temperature of the QCL. However, the tight-lock between two QCL combs has not yet been reported in literature. In this work, we demonstrate faster control over both degrees of freedom of a MIR QCL comb by optically injecting a near-infrared (NIR) laser into the QCL cavity, which could enable the tight-locking of two QCL combs. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
|
