Understanding Nonlinear Pulse Propagation in Liquid Strand-Based Photonic Bandgap Fibers
Ultrafast supercontinuum generation crucially depends on the dispersive properties of the underlying waveguide. This strong dependency allows for tailoring nonlinear frequency conversion and is particularly relevant in the context of waveguides that include geometry-induced resonances. Here, we expe...
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| Format: | Article |
| Language: | English |
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MDPI AG
2021-03-01
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| Series: | Crystals |
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| Online Access: | https://www.mdpi.com/2073-4352/11/3/305 |
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| author | Xue Qi Kay Schaarschmidt Guangrui Li Saher Junaid Ramona Scheibinger Tilman Lühder Markus A. Schmidt |
| author_facet | Xue Qi Kay Schaarschmidt Guangrui Li Saher Junaid Ramona Scheibinger Tilman Lühder Markus A. Schmidt |
| author_sort | Xue Qi |
| collection | DOAJ |
| description | Ultrafast supercontinuum generation crucially depends on the dispersive properties of the underlying waveguide. This strong dependency allows for tailoring nonlinear frequency conversion and is particularly relevant in the context of waveguides that include geometry-induced resonances. Here, we experimentally uncovered the impact of the relative spectral distance between the pump and the bandgap edge on the supercontinuum generation and in particular on the dispersive wave formation on the example of a liquid strand-based photonic bandgap fiber. In contrast to its air-hole-based counterpart, a bandgap fiber shows a dispersion landscape that varies greatly with wavelength. Particularly due to the strong dispersion variation close to the bandgap edges, nanometer adjustments of the pump wavelength result in a dramatic change of the dispersive wave generation (wavelength and threshold). Phase-matching considerations confirm these observations, additionally revealing the relevance of third order dispersion for interband energy transfer. The present study provides additional insights into the nonlinear frequency conversion of resonance-enhanced waveguide systems which will be relevant for both understanding nonlinear processes as well as for tailoring the spectral output of nonlinear fiber sources. |
| first_indexed | 2024-03-10T13:05:27Z |
| format | Article |
| id | doaj.art-0e33883ba04c4153982079b05473f760 |
| institution | Directory Open Access Journal |
| issn | 2073-4352 |
| language | English |
| last_indexed | 2024-03-10T13:05:27Z |
| publishDate | 2021-03-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Crystals |
| spelling | doaj.art-0e33883ba04c4153982079b05473f7602023-11-21T11:09:54ZengMDPI AGCrystals2073-43522021-03-0111330510.3390/cryst11030305Understanding Nonlinear Pulse Propagation in Liquid Strand-Based Photonic Bandgap FibersXue Qi0Kay Schaarschmidt1Guangrui Li2Saher Junaid3Ramona Scheibinger4Tilman Lühder5Markus A. Schmidt6Leibniz Institute of Photonic Technology, Albert-Einstein-Str. 9, 07745 Jena, GermanyLeibniz Institute of Photonic Technology, Albert-Einstein-Str. 9, 07745 Jena, GermanyLeibniz Institute of Photonic Technology, Albert-Einstein-Str. 9, 07745 Jena, GermanyLeibniz Institute of Photonic Technology, Albert-Einstein-Str. 9, 07745 Jena, GermanyLeibniz Institute of Photonic Technology, Albert-Einstein-Str. 9, 07745 Jena, GermanyLeibniz Institute of Photonic Technology, Albert-Einstein-Str. 9, 07745 Jena, GermanyLeibniz Institute of Photonic Technology, Albert-Einstein-Str. 9, 07745 Jena, GermanyUltrafast supercontinuum generation crucially depends on the dispersive properties of the underlying waveguide. This strong dependency allows for tailoring nonlinear frequency conversion and is particularly relevant in the context of waveguides that include geometry-induced resonances. Here, we experimentally uncovered the impact of the relative spectral distance between the pump and the bandgap edge on the supercontinuum generation and in particular on the dispersive wave formation on the example of a liquid strand-based photonic bandgap fiber. In contrast to its air-hole-based counterpart, a bandgap fiber shows a dispersion landscape that varies greatly with wavelength. Particularly due to the strong dispersion variation close to the bandgap edges, nanometer adjustments of the pump wavelength result in a dramatic change of the dispersive wave generation (wavelength and threshold). Phase-matching considerations confirm these observations, additionally revealing the relevance of third order dispersion for interband energy transfer. The present study provides additional insights into the nonlinear frequency conversion of resonance-enhanced waveguide systems which will be relevant for both understanding nonlinear processes as well as for tailoring the spectral output of nonlinear fiber sources.https://www.mdpi.com/2073-4352/11/3/305photonic bandgap fiberdispersive waveresonancedispersion managementsupercontinuum generation |
| spellingShingle | Xue Qi Kay Schaarschmidt Guangrui Li Saher Junaid Ramona Scheibinger Tilman Lühder Markus A. Schmidt Understanding Nonlinear Pulse Propagation in Liquid Strand-Based Photonic Bandgap Fibers Crystals photonic bandgap fiber dispersive wave resonance dispersion management supercontinuum generation |
| title | Understanding Nonlinear Pulse Propagation in Liquid Strand-Based Photonic Bandgap Fibers |
| title_full | Understanding Nonlinear Pulse Propagation in Liquid Strand-Based Photonic Bandgap Fibers |
| title_fullStr | Understanding Nonlinear Pulse Propagation in Liquid Strand-Based Photonic Bandgap Fibers |
| title_full_unstemmed | Understanding Nonlinear Pulse Propagation in Liquid Strand-Based Photonic Bandgap Fibers |
| title_short | Understanding Nonlinear Pulse Propagation in Liquid Strand-Based Photonic Bandgap Fibers |
| title_sort | understanding nonlinear pulse propagation in liquid strand based photonic bandgap fibers |
| topic | photonic bandgap fiber dispersive wave resonance dispersion management supercontinuum generation |
| url | https://www.mdpi.com/2073-4352/11/3/305 |
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