Dispersion Managed Mode-locking in all-fiber Polarization-maintaining Nd-doped Laser at 920 nm
| Autor: | Mkrtchyan, Aram A., Mishevsky, Mikhail. S., Gladush, Yuriy G., Melkumov, Mikhail A., Khegai, Aleksandr M., Lagoudakis, Pavlos G., Nasibulin, Albert G. |
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| Rok vydání: | 2023 |
| Předmět: | |
| Druh dokumentu: | Working Paper |
| DOI: | 10.1109/JLT.2022.3229826 |
| Popis: | We present a comprehensive study of dispersion managed ultrashort-pulse generation in Nd-doped polarization maintaining all-fiber laser at a 920 nm wavelength. We implement a linear laser scheme with a chirped fiber Bragg grating (CFBG) serving as a semitransparent mirror and semiconductor saturable absorber mirror (SESAM) as a mode-locker and as a second non-transparent mirror. Complete 1064 nm emission filtering is ensured by 920/1064 wavelength division multiplexer. The dispersion compensation by CFBG was sufficient to reach anomalous net dispersion in the shortest laser scheme allowing us to investigate mode-locking regimes in the -0.05 ps 2 - 0.24 ps 2 net dispersion range by varying the length of the passive fiber. With this approach we demonstrate high order harmonic mode-locking at dispersion closer to zero and large energy span near-parabolic shape single pulse operation in anomalous dispersion regime. The investigation is supported by numerical simulations used to optimize the laser resonator design and to investigate intracavity pulse evolution. Comment: 7 pages, 5 figures, Journal of Lightwave Technology (2022) |
| Databáze: | arXiv |
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