Ultraviolet-Extended Supercontinuum Generation in Zero-Dispersion Wavelength Decreasing Photonic Crystal Fibers
Supercontinuum covering the ultraviolet-blue region is highly useful for fluorescence microscopy. Four zero-dispersion wavelength decreasing photonic crystal fibers with different fiber cross structures and taper profiles are fabricated to extend the short wavelength edge of supercontinuum. Both nan...
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IEEE
2020-01-01
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| Series: | IEEE Photonics Journal |
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| Online Access: | https://ieeexplore.ieee.org/document/9241022/ |
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| author | Wanjun Bi Xia Li Meisong Liao Tianxing Wang Peiwen Kuan Liang Chen Lili Hu Weiqing Gao |
| author_facet | Wanjun Bi Xia Li Meisong Liao Tianxing Wang Peiwen Kuan Liang Chen Lili Hu Weiqing Gao |
| author_sort | Wanjun Bi |
| collection | DOAJ |
| description | Supercontinuum covering the ultraviolet-blue region is highly useful for fluorescence microscopy. Four zero-dispersion wavelength decreasing photonic crystal fibers with different fiber cross structures and taper profiles are fabricated to extend the short wavelength edge of supercontinuum. Both nanosecond and picosecond pump pulses at 1 μm are used to generate supercontinuum. With a 3 ns pump pulse, the short wavelength edge of supercontinuum is extended to below 400 nm in a fiber with high air-hole ratio (named T3). The underlying mechanism of supercontinuum generation is explored. The short and long wavelength edges of supercontinuum are highly related with the phase-matching condition which decided by the group velocity curve of fiber small core end. With a 10 ps pump pulse, the spectral intensity around ∼800 nm increases in all four fibers. However, the intensity in shorter wavelength band decreased in fibers with a high air-hole ratio (named T3, T4). The experimental results imply that a zero-dispersion wavelength decreasing photonic crystal fiber suitable for nanosecond pulse pumping is not necessarily suitable for picosecond pulse pumping, especially for fibers with high air-hole ratio. |
| format | Article |
| id | doaj-art-3d998dc308bf4686b81977aa48fbfc93 |
| institution | OA Journals |
| issn | 1943-0655 |
| language | English |
| publishDate | 2020-01-01 |
| publisher | IEEE |
| record_format | Article |
| series | IEEE Photonics Journal |
| spelling | doaj-art-3d998dc308bf4686b81977aa48fbfc932025-08-20T02:38:05ZengIEEEIEEE Photonics Journal1943-06552020-01-011261810.1109/JPHOT.2020.30342359241022Ultraviolet-Extended Supercontinuum Generation in Zero-Dispersion Wavelength Decreasing Photonic Crystal FibersWanjun Bi0https://orcid.org/0000-0002-6787-8630Xia Li1https://orcid.org/0000-0002-5802-6540Meisong Liao2Tianxing Wang3Peiwen Kuan4https://orcid.org/0000-0002-5168-1294Liang Chen5Lili Hu6https://orcid.org/0000-0003-0704-2206Weiqing Gao7Key Laboratory of Materials for High Power Laser, Shanghai Institute of Optics and Fine Mechanics, Shanghai, ChinaKey Laboratory of Materials for High Power Laser, Shanghai Institute of Optics and Fine Mechanics, Shanghai, ChinaKey Laboratory of Materials for High Power Laser, Shanghai Institute of Optics and Fine Mechanics, Shanghai, ChinaKey Laboratory of Materials for High Power Laser, Shanghai Institute of Optics and Fine Mechanics, Shanghai, ChinaKey Laboratory of Materials for High Power Laser, Shanghai Institute of Optics and Fine Mechanics, Shanghai, ChinaKey Laboratory of Materials for High Power Laser, Shanghai Institute of Optics and Fine Mechanics, Shanghai, ChinaKey Laboratory of Materials for High Power Laser, Shanghai Institute of Optics and Fine Mechanics, Shanghai, ChinaSchool of Electronic Science and Applied Physics, Hefei University of Technology, Hefei, ChinaSupercontinuum covering the ultraviolet-blue region is highly useful for fluorescence microscopy. Four zero-dispersion wavelength decreasing photonic crystal fibers with different fiber cross structures and taper profiles are fabricated to extend the short wavelength edge of supercontinuum. Both nanosecond and picosecond pump pulses at 1 μm are used to generate supercontinuum. With a 3 ns pump pulse, the short wavelength edge of supercontinuum is extended to below 400 nm in a fiber with high air-hole ratio (named T3). The underlying mechanism of supercontinuum generation is explored. The short and long wavelength edges of supercontinuum are highly related with the phase-matching condition which decided by the group velocity curve of fiber small core end. With a 10 ps pump pulse, the spectral intensity around ∼800 nm increases in all four fibers. However, the intensity in shorter wavelength band decreased in fibers with a high air-hole ratio (named T3, T4). The experimental results imply that a zero-dispersion wavelength decreasing photonic crystal fiber suitable for nanosecond pulse pumping is not necessarily suitable for picosecond pulse pumping, especially for fibers with high air-hole ratio.https://ieeexplore.ieee.org/document/9241022/Supercontinuum generationPhotonic crystal fibernonlinear optics |
| spellingShingle | Wanjun Bi Xia Li Meisong Liao Tianxing Wang Peiwen Kuan Liang Chen Lili Hu Weiqing Gao Ultraviolet-Extended Supercontinuum Generation in Zero-Dispersion Wavelength Decreasing Photonic Crystal Fibers IEEE Photonics Journal Supercontinuum generation Photonic crystal fiber nonlinear optics |
| title | Ultraviolet-Extended Supercontinuum Generation in Zero-Dispersion Wavelength Decreasing Photonic Crystal Fibers |
| title_full | Ultraviolet-Extended Supercontinuum Generation in Zero-Dispersion Wavelength Decreasing Photonic Crystal Fibers |
| title_fullStr | Ultraviolet-Extended Supercontinuum Generation in Zero-Dispersion Wavelength Decreasing Photonic Crystal Fibers |
| title_full_unstemmed | Ultraviolet-Extended Supercontinuum Generation in Zero-Dispersion Wavelength Decreasing Photonic Crystal Fibers |
| title_short | Ultraviolet-Extended Supercontinuum Generation in Zero-Dispersion Wavelength Decreasing Photonic Crystal Fibers |
| title_sort | ultraviolet extended supercontinuum generation in zero dispersion wavelength decreasing photonic crystal fibers |
| topic | Supercontinuum generation Photonic crystal fiber nonlinear optics |
| url | https://ieeexplore.ieee.org/document/9241022/ |
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