Compression of CEP-stable multi-mJ laser pulses down to 4 fs in long hollow fibers
Frederik Bohle, Martin Kretschmar, Aurelie Jullien, Mate Kovacs,, Miguel Miranda, Rosa Romero, Helder Crespo, Uwe Morgner, Peter Simon, Rodrigo, Lopez-Martens, Tamas Nagy
TL;DR
This paper demonstrates the generation of carrier envelope phase stable 4 fs near-infrared pulses with 3 mJ energy by spectral broadening in a long hollow fiber, enabling advanced ultrafast laser applications.
Contribution
It introduces a novel method for compressing high-energy laser pulses to 4 fs using a long hollow fiber, achieving CEP stability and high pulse energy.
Findings
Achieved 4 fs pulse duration with 3 mJ energy
Maintained carrier envelope phase stability
Validated pulse characteristics with SHG-FROG and SHG d-scan
Abstract
Carrier envelope phase stable 4 fs near-IR pulses with 3 mJ energy were generated by spectral broadening of circularly polarized 8 mJ pulses in a differentially pumped 2 m long composite stretched exible hollow ber. The pulses were characterized using both second-harmonic generation frequency-resolved optical gating (SHG-FROG) and SHG d-scan methods
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