0.74 W Broadband Degenerate Femtosecond MgO-Doped Periodically Poled Lithium Niobate (MgO: PPLN) Optical Parametric Oscillator at 2056 nm
The degenerate optical parametric oscillator (OPO) is demonstrated to generate high-power, broadband mid-infrared MgO-doped periodically poled lithium niobate (MgO:PPLN) femtosecond laser at 151 MHz, synchronously pumped by a commercial Kerr-lens mode-locked Yb:KGW oscillator at 1028 nm. The average...
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2025-05-01
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| author | Yuxiang Zhao Bobo Wang Jinfang Yang Taotao He Hao Xu Xue Qiu Zhong Dong Weijun Ling |
| author_facet | Yuxiang Zhao Bobo Wang Jinfang Yang Taotao He Hao Xu Xue Qiu Zhong Dong Weijun Ling |
| author_sort | Yuxiang Zhao |
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| description | The degenerate optical parametric oscillator (OPO) is demonstrated to generate high-power, broadband mid-infrared MgO-doped periodically poled lithium niobate (MgO:PPLN) femtosecond laser at 151 MHz, synchronously pumped by a commercial Kerr-lens mode-locked Yb:KGW oscillator at 1028 nm. The average power of the degenerate OPO centered at 2056 nm is as high as 740 mW, which is the highest output power from a reported 2 μm degenerate femtosecond OPO, pumped by a bulk solid-state laser. The full width at half maximum (FWHM) spectral bandwidth of the degenerate OPO is 87.4 nm, corresponding to a theoretical, Fourier-limited pulse duration of 51 fs. These remarkable results indicate that degenerate OPO is a great potential candidate technology for generating high-power and few-cycle femtosecond pulses around 2 μm. Such mid-infrared sources are well-suited for high harmonic generation, a pumping source for mid- to far-infrared OPO. |
| format | Article |
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| language | English |
| publishDate | 2025-05-01 |
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| spelling | doaj-art-bd00c11e03404ae681be84526d52402a2025-06-25T14:19:00ZengMDPI AGPhotonics2304-67322025-05-0112654310.3390/photonics120605430.74 W Broadband Degenerate Femtosecond MgO-Doped Periodically Poled Lithium Niobate (MgO: PPLN) Optical Parametric Oscillator at 2056 nmYuxiang Zhao0Bobo Wang1Jinfang Yang2Taotao He3Hao Xu4Xue Qiu5Zhong Dong6Weijun Ling7Gansu Provincial All Solid-State Laser Engineering Research Center, Tianshui Normal University, Tianshui 741001, ChinaGansu Provincial All Solid-State Laser Engineering Research Center, Tianshui Normal University, Tianshui 741001, ChinaGansu Provincial All Solid-State Laser Engineering Research Center, Tianshui Normal University, Tianshui 741001, ChinaGansu Provincial All Solid-State Laser Engineering Research Center, Tianshui Normal University, Tianshui 741001, ChinaGansu Provincial All Solid-State Laser Engineering Research Center, Tianshui Normal University, Tianshui 741001, ChinaGansu Provincial All Solid-State Laser Engineering Research Center, Tianshui Normal University, Tianshui 741001, ChinaGansu Provincial All Solid-State Laser Engineering Research Center, Tianshui Normal University, Tianshui 741001, ChinaGansu Provincial All Solid-State Laser Engineering Research Center, Tianshui Normal University, Tianshui 741001, ChinaThe degenerate optical parametric oscillator (OPO) is demonstrated to generate high-power, broadband mid-infrared MgO-doped periodically poled lithium niobate (MgO:PPLN) femtosecond laser at 151 MHz, synchronously pumped by a commercial Kerr-lens mode-locked Yb:KGW oscillator at 1028 nm. The average power of the degenerate OPO centered at 2056 nm is as high as 740 mW, which is the highest output power from a reported 2 μm degenerate femtosecond OPO, pumped by a bulk solid-state laser. The full width at half maximum (FWHM) spectral bandwidth of the degenerate OPO is 87.4 nm, corresponding to a theoretical, Fourier-limited pulse duration of 51 fs. These remarkable results indicate that degenerate OPO is a great potential candidate technology for generating high-power and few-cycle femtosecond pulses around 2 μm. Such mid-infrared sources are well-suited for high harmonic generation, a pumping source for mid- to far-infrared OPO.https://www.mdpi.com/2304-6732/12/6/543nonlinear frequency conversiondegenerate optical parametric oscillator2 μm femtosecond laserMgO: PPLN crystal |
| spellingShingle | Yuxiang Zhao Bobo Wang Jinfang Yang Taotao He Hao Xu Xue Qiu Zhong Dong Weijun Ling 0.74 W Broadband Degenerate Femtosecond MgO-Doped Periodically Poled Lithium Niobate (MgO: PPLN) Optical Parametric Oscillator at 2056 nm Photonics nonlinear frequency conversion degenerate optical parametric oscillator 2 μm femtosecond laser MgO: PPLN crystal |
| title | 0.74 W Broadband Degenerate Femtosecond MgO-Doped Periodically Poled Lithium Niobate (MgO: PPLN) Optical Parametric Oscillator at 2056 nm |
| title_full | 0.74 W Broadband Degenerate Femtosecond MgO-Doped Periodically Poled Lithium Niobate (MgO: PPLN) Optical Parametric Oscillator at 2056 nm |
| title_fullStr | 0.74 W Broadband Degenerate Femtosecond MgO-Doped Periodically Poled Lithium Niobate (MgO: PPLN) Optical Parametric Oscillator at 2056 nm |
| title_full_unstemmed | 0.74 W Broadband Degenerate Femtosecond MgO-Doped Periodically Poled Lithium Niobate (MgO: PPLN) Optical Parametric Oscillator at 2056 nm |
| title_short | 0.74 W Broadband Degenerate Femtosecond MgO-Doped Periodically Poled Lithium Niobate (MgO: PPLN) Optical Parametric Oscillator at 2056 nm |
| title_sort | 0 74 w broadband degenerate femtosecond mgo doped periodically poled lithium niobate mgo ppln optical parametric oscillator at 2056 nm |
| topic | nonlinear frequency conversion degenerate optical parametric oscillator 2 μm femtosecond laser MgO: PPLN crystal |
| url | https://www.mdpi.com/2304-6732/12/6/543 |
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