| Autor: |
Fu Q, Wu Y, Davidson IA, Xu L, Jasion GT, Liang S, Rikimi S, Poletti F, Wheeler NV, Richardson DJ |
| Jazyk: |
angličtina |
| Zdroj: |
Optics letters [Opt Lett] 2022 Oct 15; Vol. 47 (20), pp. 5301-5304. |
| DOI: |
10.1364/OL.473230 |
| Abstrakt: |
We report a high-power single-mode mid-infrared (MIR) pulse delivery system via anti-resonant hollow-core fiber (HCF) with a record delivery distance of 108 m. Near-diffraction-limited MIR light was transmitted by HCFs at wavelengths of 3.12-3.58 µm using a tunable optical parametric oscillator (OPO) as the light source. The HCFs were purged beforehand with argon in order to remove or reduce loss due to parasitic gas absorption (HCl, CO 2 , etc.). The minimum fiber loss values were 0.05 and 0.24 dB/m at 3.4-3.6 µm and 4.5-4.6 µm, respectively, with the 4.5-4.6 µm loss figure representing, to the best of our knowledge, a new low loss record for a HCF in this spectral region. At a coupling efficiency of ∼70%, average powers of 592 mW and 133 mW were delivered through 5 m and 108 m of HCF, respectively. Assuming the 120-ps duration of the MIR pulses remained constant over the low-dispersion HCF (theoretical maximum: 0.4 ps/nm/km), the corresponding calculated peak powers were 4.9 kW and 1.1 kW. |
| Databáze: |
MEDLINE |
| Externí odkaz: |
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