Solitary beam propagation in periodic layered Kerr media enables high-efficiency pulse compression and mode self-cleaning
| Autor: | Zongyuan Fu, Chuanshan Tian, Guangyu Fan, Cheng Jin, Andrius Baltuška, Yaxin Liu, Yudong Chen, Bingbing Zhu, Sheng Zhang, Zhensheng Tao, Shunjia Wang |
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| Rok vydání: | 2020 |
| Předmět: |
Materials science
Letter Nonlinear optics 02 engineering and technology 01 natural sciences 010309 optics Optics 0103 physical sciences High harmonic generation Applied optics. Photonics Ultrafast lasers business.industry QC350-467 Optics. Light 021001 nanoscience & nanotechnology Atomic and Molecular Physics and Optics Electronic Optical and Magnetic Materials Supercontinuum TA1501-1820 Nonlinear system Pulse compression Femtosecond High-harmonic generation 0210 nano-technology business Ultrashort pulse Beam (structure) |
| Zdroj: | Light, Science & Applications Light: Science & Applications, Vol 10, Iss 1, Pp 1-11 (2021) |
| ISSN: | 2047-7538 |
| Popis: | Generating intense ultrashort pulses with high-quality spatial modes is crucial for ultrafast and strong-field science and can be achieved by nonlinear supercontinuum generation (SCG) and pulse compression. In this work, we propose that the generation of quasi-stationary solitons in periodic layered Kerr media can greatly enhance the nonlinear light-matter interaction and fundamentally improve the performance of SCG and pulse compression in condensed media. With both experimental and theoretical studies, we successfully identify these solitary modes and reveal their unified condition for stability. Space-time coupling is shown to strongly influence the stability of solitons, leading to variations in the spectral, spatial and temporal profiles of femtosecond pulses. Taking advantage of the unique characteristics of these solitary modes, we first demonstrate single-stage SCG and the compression of femtosecond pulses from 170 to 22 fs with an efficiency >85%. The high spatiotemporal quality of the compressed pulses is further confirmed by high-harmonic generation. We also provide evidence of efficient mode self-cleaning, which suggests rich spatiotemporal self-organization of the laser beams in a nonlinear resonator. This work offers a route towards highly efficient, simple, stable and highly flexible SCG and pulse compression solutions for state-of-the-art ytterbium laser technology. |
| Databáze: | OpenAIRE |
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