| Autor: |
Zhang X, He W, Wang X, Wang B, Huang Q, Zheng Y, Yin R, Huang Z, Xie J, Liu K, Jiang X, Xu L, Leng Y, Pang M |
| Jazyk: |
angličtina |
| Zdroj: |
Optics letters [Opt Lett] 2024 Jun 01; Vol. 49 (11), pp. 2982-2985. |
| DOI: |
10.1364/OL.520119 |
| Abstrakt: |
We demonstrate a compact ultrafast fiber laser system that can deliver 1.87 GHz pulse train at 1550 nm with a pulse energy of 52 pJ and an ultrashort pulse duration of 57 fs. While an acousto-optic mode-locking fiber laser was used as the seed light source at GHz rate, a stage of Er-doped fiber amplifier boosted the laser power to ∼320 mW, giving a pulse energy of ∼170 pJ. Then, a pulse compression setup was constructed, providing a high compression ratio of ∼10 with a total efficiency of ∼32%. In the cascaded compression configuration, multiple fiber samples with alternately normal and anomalous dispersion were fused together, providing efficient nonlinear spectral broadening while suppressing excessive pulse broadening over propagation. This GHz-rate ultrafast fiber laser, with compact configuration, broad optical spectrum, and high time-resolving ability could be used as the seed light source for constructing high-rate, high-power ultrafast laser systems and may find a few applications in optical measurements and microwave photonics. |
| Databáze: |
MEDLINE |
| Externí odkaz: |
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