%0 Electronic Article
%A Gaafar, Mahmoud A.
%A Ludwig, Markus
%A Wang, Kai
%A Wildi, Thibault
%A Voumard, Thibault
%A Sinobad, Milan
%A Lorenzen, Jan
%A Francis, Henry
%A Zhang, Shuangyou
%A Bi, Toby
%A Del'Haye, Pascal
%A Geiselmann, Michael
%A Singh, Neetesh Kumar
%A Kärtner, Franz
%A Garcia-Blanco, Sonia
%A Herr, Tobias
%T Femtosecond pulse amplification on a chip
%N arXiv:2311.04758
%M PUBDB-2023-06618
%M arXiv:2311.04758
%D 2023
%X Femtosecond laser pulses enable the synthesis of light across the electromagnetic spectrum and provide access to ultrafast phenomena in physics, biology, and chemistry. Chip-integration of femtosecond technology could revolutionize applications such as point-of-care diagnostics, bio-medical imaging, portable chemical sensing, or autonomous navigation. However, current sources lack the required power, and the on-chip amplification of femtosecond pulses is an unresolved challenge. Here, addressing this challenge, we report >50-fold amplification of 1 GHz repetition-rate chirped femtosecond pulses in a CMOS-compatible photonic chip to 800 W peak power with 116 fs pulse duration. Nonlinear effects, usually a hallmark of integrated photonics but prohibitive to pulse amplification are mitigated through all-normal dispersion, large mode-area rare-earth-doped gain waveguides. These results offer a pathway to chip-integrated femtosecond technology with power-levels characteristic of table-top sources.
%K Optics (physics.optics) (Other)
%K FOS: Physical sciences (Other)
%F PUB:(DE-HGF)25
%9 Preprint
%R 10.3204/PUBDB-2023-06618
%U https://bib-pubdb1.desy.de/record/597521