Dual-dispersion-regime dual-comb mode-locked laser

Fuente: arXiv
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Hauptverfasser: Kowalczyk, Maciej, Sterczewski, Łukasz A., Zhang, Xuzhao, Petrov, Valentin, Sotor, Jarosław
Format: Preprint
Veröffentlicht: 2022
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author Kowalczyk, Maciej
Sterczewski, Łukasz A.
Zhang, Xuzhao
Petrov, Valentin
Sotor, Jarosław
author_facet Kowalczyk, Maciej
Sterczewski, Łukasz A.
Zhang, Xuzhao
Petrov, Valentin
Sotor, Jarosław
contents We report on the first solid-state dual-comb mode-locked laser simultaneously operating in different dispersion regimes. Due to the intrinsic polarization-multiplexing in a birefringent Yb:Ca$_3$NbGa$_3$Si$_2$O$_{14}$ (Yb:CNGS) gain medium, the laser emits two cross-polarized pulse trains with a repetition rate offset of ~4.8 kHz from a single cavity. We obtain dual pulse generation with 20-fold difference in the duration, by setting the net cavity group delay dispersion to cross zero across the emission band of the employed gain medium. While the duration of the soliton-like pulses experiencing anomalous dispersion amounts to 117 fs, the second laser output that is spectrally located in the normal dispersion region, is strongly chirped with a pulse duration of 2360 fs.
format Preprint
id arxiv_https___arxiv_org_abs_2201_10312
institution arXiv
publishDate 2022
record_format arxiv
spellingShingle Dual-dispersion-regime dual-comb mode-locked laser
Kowalczyk, Maciej
Sterczewski, Łukasz A.
Zhang, Xuzhao
Petrov, Valentin
Sotor, Jarosław
Optics
We report on the first solid-state dual-comb mode-locked laser simultaneously operating in different dispersion regimes. Due to the intrinsic polarization-multiplexing in a birefringent Yb:Ca$_3$NbGa$_3$Si$_2$O$_{14}$ (Yb:CNGS) gain medium, the laser emits two cross-polarized pulse trains with a repetition rate offset of ~4.8 kHz from a single cavity. We obtain dual pulse generation with 20-fold difference in the duration, by setting the net cavity group delay dispersion to cross zero across the emission band of the employed gain medium. While the duration of the soliton-like pulses experiencing anomalous dispersion amounts to 117 fs, the second laser output that is spectrally located in the normal dispersion region, is strongly chirped with a pulse duration of 2360 fs.
title Dual-dispersion-regime dual-comb mode-locked laser
topic Optics
url https://arxiv.org/abs/2201.10312