Issue |
EPJ Web Conf.
Volume 287, 2023
EOS Annual Meeting (EOSAM 2023)
|
|
---|---|---|
Article Number | 07020 | |
Number of page(s) | 2 | |
Section | Topical Meeting (TOM) 7- Optical Frequency Combs | |
DOI | https://doi.org/10.1051/epjconf/202328707020 | |
Published online | 18 October 2023 |
https://doi.org/10.1051/epjconf/202328707020
Radio-frequency enabled comb in ring Quantum Cascade Lasers
Institute for Quantum Electronics, Swiss Federal Institute of Technology (ETH) Zürich, Auguste-Piccard-Hof 1, 8093 Zürich
* Corresponding author: iheckelmann@phys.ethz.ch
Published online: 18 October 2023
Frequency combs (FC) generated by quantum cascade lasers (QCLs) are a promising tool for precision spectroscopy and gas sensing. Recently, ring QCLs have emerged as a new platform for generating FC with unique advantages over Fabry-Perot geometry. While the bandwidth of such Fabry-Perot devices is determined by the device geometry and dispersion, radio-frequency injected devices with circular geometry enable the exploitation of the full gain bandwidth in a controlled manner. Together with this platform, a predictive analytical model that shows excellent agreement with the experimental data was developed. Our results pave the way for a new approach for frequency comb generation based on fast-gain saturation.
© The Authors, published by EDP Sciences, 2023
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