The Generation of 1.2 ?J Pulses From a Mamyshev Oscillator Based on a High Concentration, Large-Mode-Area Yb-Doped Fiber
نویسندگان
چکیده
We demonstrate a high-energy and high-average power Mamyshev oscillator based on high performance large-mode-area step-index germanosilicate-cladding Yb-doped fiber. The oscillation of higher-order modes is effectively suppressed by employing appropriate intracavity spatial mode filtering, allowing significant scaling single pulse energy. laser directly generates nearly diffraction-limited beam with an average 17 W operating at the fundamental repetition rate 14.01 MHz, corresponding to energy 1.2 ?J. pulses could be externally dechirped ?58 fs, leading peak ?13 MW. To best our knowledge, this highest sub-100 fs duration ever obtained from mode-locked fiber oscillator.
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ژورنال
عنوان ژورنال: Journal of Lightwave Technology
سال: 2022
ISSN: ['0733-8724', '1558-2213']
DOI: https://doi.org/10.1109/jlt.2022.3198737