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arXiv · 2212.00626

A route to high peak power and energy scaling in the mid-IR chirped-pulse oscillator-amplifier laser systems

Alexander Rudenkov·Vladimir L. Kalashnikov·Evgeni Sorokin·Maksim Demesh·Irina T. Sorokina
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Abstract

The paper introduces a new route towards the ultrafast high laser peak power and energy scaling in a hybrid mid-IR chirped pulse oscillator-amplifier (CPO-CPA) system, without sacrificing neither the pulse duration nor energy. The method is based on using a CPO as a seed source allowing the beneficial implementation of a dissipative soliton (DS) energy scaling approach, coupled with a universal CPA technique. The key is avoiding a destructive nonlinearity in the final stages of an amplifier and compressor elements by using a chirped high-fidelity pulse from CPO. Our main intention is to realize this approach in a Cr2+:ZnS-based CPO as a source of energy-scalable DSs with well-controllable phase characteristics for a single-pass Cr2+:ZnS amplifier. A qualitative comparison of experimental and theoretical results provides a road map for the development and energy scaling of the hybrid CPO-CPA laser systems, without compromising pulse duration. The suggested technique opens up a route towards extremely intense ultra-short pulses and frequency combs from the multi-pass CPO-CPA laser systems that are particularly interesting for real-life applications in the mid-IR spectral range from 1 to 20 um.

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Alexander Rudenkov, Vladimir L. Kalashnikov, Evgeni Sorokin, Maksim Demesh, Irina T. Sorokina. 2023-03-13. A route to high peak power and energy scaling in the mid-IR chirped-pulse oscillator-amplifier laser systems. https://doi.org/10.1364/oe.484742

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