Broadband Dispersive‐Wave Emission Coupled with Two‐Stage Soliton Self‐Compression in Gas‐Filled Anti‐Resonant Hollow‐Core Fibers

Laser & Photonics Review, Journal Year: 2024, Volume and Issue: 18(11)

Published: June 27, 2024

Abstract The underlying mechanism of broadband dispersive‐wave emission within a resonance band gas‐filled anti‐resonant hollow‐core fiber is studied. Both numerical and experimental results unveiled that the pump pulse with soliton order ≈3, launched into fiber, experienced two stages compression, resulting in multi‐peak structure emitted spectrum. Over first‐stage sharp increase peak power triggers first time emission, simultaneously causes frequency blue‐shift due to soliton‐plasma interactions. As central blue‐shifting approaches it experiences fast‐decreasing dispersion value waveguide, second stage compression. second‐stage compression phase‐matched slightly lower than at stage. Multi‐peak spectra output dispersive‐waves their formation dynamics can be understood using delicate unique coupling among three nonlinear effects including multi‐stage interaction, emission. dispersive‐wave, exhibiting good coherence stability, potentially compressed sub‐30 fs duration precise chirp‐compensation technique.

Language: Английский

Power scalable self-compression of near-200-fs Yb:KGW laser to 7 fs at 100 kHz in an anti-resonant hollow-core photonic crystal fiber

Published: Jan. 1, 2024

We experimentally demonstrated self-compression of near-200-fs Yb:KGW laser to 7 fs at 100 kHz in a single gas-filled anti-resonant hollow-core photonic crystal fiber.

Language: Английский