| Issue |
EPJ Web Conf.
Volume 287, 2023
EOS Annual Meeting (EOSAM 2023)
|
|
|---|---|---|
| Article Number | 07015 | |
| Number of page(s) | 2 | |
| Section | Topical Meeting (TOM) 7- Optical Frequency Combs | |
| DOI | https://doi.org/10.1051/epjconf/202328707015 | |
| Published online | 18 October 2023 | |
https://doi.org/10.1051/epjconf/202328707015
Nonlinear frequency chirps from a stabilized injected phase-modulated fiber laser loop
Univ Rennes, CNRS, Institut Foton UMR 6082, 35000 Rennes, France
* Corresponding author: marc.brunel@univ-rennes.fr
Published online: 18 October 2023
A phase-modulated frequency-shifting loop is injected by a single-frequency laser at 1.5 μm. In so-called Talbot conditions, i.e., when the modulation frequency is an integer multiple of the inverse of the cavity round-trip time, the loop generates a frequency comb whose temporal trace consists in a train of pulse doublets whose positions in time depend on the frequency of the injection laser. When the modulation frequency is slightly detuned from the Talbot condition, nonlinear frequency chirps are predicted and observed in the output pulse train. We demonstrate that these nonlinear chirps are not restricted to sinusoidal shapes, and also that the loop can be stabilized by exploiting the intracavity phase modulation.
© The Authors, published by EDP Sciences, 2023
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