Tunable Ultraviolet Pulse Generation from a High-Power Self-Similar-Amplification Yb-Fiber Laser
A tunable high-power 60 MHz ultraviolet pulse laser directly produced by the extra-cavity fourth-order harmonic generation of a self-similar amplification infrared pulse laser is reported in this study. Utilizing the self-similar pulse evolution and the self-phase modulation in a self-similar amplif...
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MDPI AG
2025-01-01
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| Series: | Photonics |
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| Online Access: | https://www.mdpi.com/2304-6732/12/1/50 |
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| author | Zefeng Wang Daping Luo Gehui Xie Zejiang Deng Chenglin Gu Wenxue Li |
| author_facet | Zefeng Wang Daping Luo Gehui Xie Zejiang Deng Chenglin Gu Wenxue Li |
| author_sort | Zefeng Wang |
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| description | A tunable high-power 60 MHz ultraviolet pulse laser directly produced by the extra-cavity fourth-order harmonic generation of a self-similar amplification infrared pulse laser is reported in this study. Utilizing the self-similar pulse evolution and the self-phase modulation in a self-similar amplifier, the system generates a 58.9 W pulse train with a spectral half-width of 85.4 nm, corresponding to a pulse duration of 36 fs. To obtain the ultraviolet pulses from the infrared pulses, a single-pass frequency quadrupling system comprising two cascaded β-BBOs was used. The ultraviolet spectra can be tuned within a spectral range of 253.6 to 275 nm owing to the broadband infrared seed spectra. The maximum ultraviolet average power of 1.44 W was achieved at 275 nm with spectral half-width and an infrared-to-ultraviolet efficiency of 1.1 nm and 2.44%, respectively. To the best of our knowledge, this is the first demonstration of tunable high-power ultraviolet pulse generation from a self-similar amplification Yb-fiber laser. |
| format | Article |
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| institution | Kabale University |
| issn | 2304-6732 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | MDPI AG |
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| series | Photonics |
| spelling | doaj-art-0a29080bb0f94a00a96940389a98638c2025-01-24T13:46:20ZengMDPI AGPhotonics2304-67322025-01-011215010.3390/photonics12010050Tunable Ultraviolet Pulse Generation from a High-Power Self-Similar-Amplification Yb-Fiber LaserZefeng Wang0Daping Luo1Gehui Xie2Zejiang Deng3Chenglin Gu4Wenxue Li5State Key Laboratory of Precision Spectroscopy, East China Normal University, Shanghai 200062, ChinaState Key Laboratory of Precision Spectroscopy, East China Normal University, Shanghai 200062, ChinaState Key Laboratory of Precision Spectroscopy, East China Normal University, Shanghai 200062, ChinaState Key Laboratory of Precision Spectroscopy, East China Normal University, Shanghai 200062, ChinaState Key Laboratory of Precision Spectroscopy, East China Normal University, Shanghai 200062, ChinaState Key Laboratory of Precision Spectroscopy, East China Normal University, Shanghai 200062, ChinaA tunable high-power 60 MHz ultraviolet pulse laser directly produced by the extra-cavity fourth-order harmonic generation of a self-similar amplification infrared pulse laser is reported in this study. Utilizing the self-similar pulse evolution and the self-phase modulation in a self-similar amplifier, the system generates a 58.9 W pulse train with a spectral half-width of 85.4 nm, corresponding to a pulse duration of 36 fs. To obtain the ultraviolet pulses from the infrared pulses, a single-pass frequency quadrupling system comprising two cascaded β-BBOs was used. The ultraviolet spectra can be tuned within a spectral range of 253.6 to 275 nm owing to the broadband infrared seed spectra. The maximum ultraviolet average power of 1.44 W was achieved at 275 nm with spectral half-width and an infrared-to-ultraviolet efficiency of 1.1 nm and 2.44%, respectively. To the best of our knowledge, this is the first demonstration of tunable high-power ultraviolet pulse generation from a self-similar amplification Yb-fiber laser.https://www.mdpi.com/2304-6732/12/1/50fourth-order harmonic generationself-similar fiber amplificationultraviolet pulse |
| spellingShingle | Zefeng Wang Daping Luo Gehui Xie Zejiang Deng Chenglin Gu Wenxue Li Tunable Ultraviolet Pulse Generation from a High-Power Self-Similar-Amplification Yb-Fiber Laser Photonics fourth-order harmonic generation self-similar fiber amplification ultraviolet pulse |
| title | Tunable Ultraviolet Pulse Generation from a High-Power Self-Similar-Amplification Yb-Fiber Laser |
| title_full | Tunable Ultraviolet Pulse Generation from a High-Power Self-Similar-Amplification Yb-Fiber Laser |
| title_fullStr | Tunable Ultraviolet Pulse Generation from a High-Power Self-Similar-Amplification Yb-Fiber Laser |
| title_full_unstemmed | Tunable Ultraviolet Pulse Generation from a High-Power Self-Similar-Amplification Yb-Fiber Laser |
| title_short | Tunable Ultraviolet Pulse Generation from a High-Power Self-Similar-Amplification Yb-Fiber Laser |
| title_sort | tunable ultraviolet pulse generation from a high power self similar amplification yb fiber laser |
| topic | fourth-order harmonic generation self-similar fiber amplification ultraviolet pulse |
| url | https://www.mdpi.com/2304-6732/12/1/50 |
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