Generation and characterization of frequency tuneable sub-15 fs pulses in a gas-filled hollow-core fiber pumped by a Yb:KGW laser

Autor: Sabbah, Mohammed, Belli, Federico, Brahms, Christian, Yu, Fei, Knight, Jonathan, Travers, John C.
Rok vydání: 2022
Předmět:
Druh dokumentu: Working Paper
DOI: 10.1364/OL.484040
Popis: We investigate soliton self-compression and photoionization effects in an argon-filled antiresonant hollow-core photonic crystal fiber pumped with a commercial Yb:KGW laser. Before the onset of photoionization, we demonstrate self-compression of our 220~fs pump laser to 13~fs in a single and compact stage. By using the plasma driven soliton self-frequency blueshift, we also demonstrate a tuneable source from 1030 to ~700 nm. We fully characterize the compressed pulses using sum-frequency generation time-domain ptychography, experimentally revealing the full time-frequency plasma-soliton dynamics in hollow-core fibre for the first time.
Databáze: arXiv