Optical pulse compression of ultrashort laser pulses in a multi-hollow-core fiber |
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| Authors: | Ding Wang Yuxin Leng Zhizhan Xu |
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| Affiliation: | 1. School of Life Sciences, Fujian Agriculture and Forestry University, Fuzhou, Fujian 350002, China;2. MOE Key Laboratory of Analysis and Detection Technology for Food Safety, Fujian Provincial Key Laboratory of Analysis and Detection Technology for Food Safety, and Department of Chemistry, Fuzhou University, Fujian 350108, China;1. IMM-CNR, Zona Industriale, VIII Strada 5, Catania, Italy;2. Università degli Studi di Catania and INSTM UdR Catania, Viale Andrea Doria 6, Catania, Italy;3. CHOSE (Centre for Hybrid and Organic Solar Energy), Department of Electronic Engineering, University of Rome—Tor Vergata, via del Politecnico 1, I-00133, Rome, Italy;4. Hamamatsu Photonics Europe, Arzbergerstr. 10, Herrsching am Ammersee, D-82211, Germany |
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| Abstract: | By numerical simulations and analysis, we proposed a fiber with multi-hollow-core structure for optical pulse compression of high energy ultrashort laser pulses. In this scheme, different parts of a high-energy flat-top pulse are coupled into different hollow cores of such fiber and each of the cores functions as an independent traditional hollow-core fiber compressor. After the multi-hollow-core fiber, the output beams are collimated and compressed to few-cycle level. Then they can be focused to ultra-high intensity. This method can easily be scaled to compressing pulses of large beam size with high energy without limit in principle. |
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