Abstract
In this letter, we demonstrate how the soliton–plasma interaction initiates trapping of the generated dispersive waves (DWs) in an experimentally feasible tapered He-filled hollow-core anti-resonant fiber (HC-ARF). We show that the taper gradient strongly influences the pulse trapping dynamics and thus determines the intensity and blueshift of the trapped DW. This process leads to an efficient DW generation down to 100 nm with a 3.4-octave supercontinuum spanning 100–1150 nm (2.73 PHz) by tapering a 36- $\mu \text{m}$ core HC-ARF to 18 $\mu \text{m}$ under 19-bar He, pumped at 800 nm with 6- $\mu \text{J}$ pulse energy. The proposed fiber taper structure could be an alternative route to generate light in the extreme ultra-violet (EUV) spectral range using moderate gas pressure and relatively low pulse energy.
Original language | English |
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Journal | IEEE Photonics Technology Letters |
Volume | 31 |
Issue number | 10 |
Pages (from-to) | 795-798 |
ISSN | 1041-1135 |
DOIs | |
Publication status | Published - 2019 |
Keywords
- Hollow-core anti-resonant fiber
- Ultrafast nonlinear dynamics
- Pulse compression
- Gas-filled fiber taper