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学者姓名：王璞
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Abstract ：
In this work, we demonstrate numerically and experimentally an all-fiber-integrated gain-managed nonlinear (GMN) amplification system. The seed is a nonlinear amplifying loop mirror (NALM) mode-locked Yb-doped fiber laser with a pulse duration of 8.7 ps. By employing a chirped fiber Bragg grating (CFBG) or a bandpass filter (BPF), the pulse duration of seed is reduced to similar to 1 ps. The pulses are then injected into the Yb-doped fiber amplifier for GMN evolution. Subsequently, hollow-core photonic bandgap (HC-PBG) fibers are employed for dispersion compensation on the amplified pulse. In the BPF-filtered configuration, the entire system accumulates lower higher-order dispersion and is capable of delivering femtosecond pulses with a pulse energy of 163 nJ, a pulse duration of 45 fs, and a peak power of 3.6 MW, all while maintaining a highly favorable beam quality factor (M-2) of 1.05. Compared to previously reported GMN amplification systems, our entire system, which eliminates any sections of free-space optics, is highly attractive due to its ability to enhance stability and compactness, reduce maintenance demands and lower costs. We believe this compact femtosecond fiber laser system, with its ultrashort pulse duration and high peak power, holds potential for applications in scientific research and precision manufacturing.
Keyword ：
Ultrafast lasers Ultrafast lasers All-fiber integrated All-fiber integrated Gain-managed nonlinear amplification Gain-managed nonlinear amplification
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| GB/T 7714 | Xia, Tong , Zhao, He , Cheng, Zhaochen et al. All-fiber integrated gain-managed nonlinear amplification system delivers ultrafast lasers with 3.6 MW peak power and 45 fs pulse duration [J]. | OPTICS AND LASER TECHNOLOGY , 2024 , 181 . |
| MLA | Xia, Tong et al. "All-fiber integrated gain-managed nonlinear amplification system delivers ultrafast lasers with 3.6 MW peak power and 45 fs pulse duration" . | OPTICS AND LASER TECHNOLOGY 181 (2024) . |
| APA | Xia, Tong , Zhao, He , Cheng, Zhaochen , Hou, Yubin , Zhang, Qian , Cao, Siyuan et al. All-fiber integrated gain-managed nonlinear amplification system delivers ultrafast lasers with 3.6 MW peak power and 45 fs pulse duration . | OPTICS AND LASER TECHNOLOGY , 2024 , 181 . |
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Abstract ：
In this paper, a new scheme for generating a wide gamut of structural colors on the thin-film-stack-based (TFSB) substrates is proposed. The TFSB surfaces consist of titanium/random gold nanoparticles (AuNPs) and titanium/ random gold and copper nanoparticles (Au+CuNPs), which can trigger more resonance absorption and widen the color gamut. The electric fields in two designed structures are simulated, and the results showed that the random distribution of AuNPs and Au+CuNPs enhance the uniform local surface plasmon resonance (LSPR) response. This enhancement is crucial in broadening the coverage of the reflection spectrum, which enables the generation of a wide range of colors, including green and red. The influence of laser parameters on the color of TFSB substrates and tested their durability in terms of time is analyzed. Finally, a color palette and made structural color patterns on TFSB by nanosecond pulsed laser are prepared. The proposed new scheme can be easily fabricated by magnetron sputtering without requiring additional procedures, which can open new perspectives in plasmonic colors. This work demonstrates that the promising potential of methods in creating a wide color gamut on metallic surfaces. Additionally, it serves as a means to store information for the preservation and protection of traditional cultures. A new scheme for generating wide gamut structural colors on the thin-film-stack-based (TFSB) substrates. The random distribution of AuNPs and Au+CuNPs enhance the LSPR response, which is crucial in generating of a wide range of colors. The proposed new scheme can be easily fabricated by magnetron sputtering without requiring additional procedures, which can open new perspectives in plasmonic colors. image
Keyword ：
wide gamut wide gamut nanoparticles nanoparticles composite structures composite structures laser-induced coloration laser-induced coloration surface plasmon surface plasmon
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| GB/T 7714 | Zhao, He , Xia, Tong , Cao, Siyuan et al. Generation of Wide Color Gamut in a Collisional and Magnetized Plasma by Laser-Induced Coloration on Composite Structure Surfaces [J]. | ADVANCED OPTICAL MATERIALS , 2024 , 12 (23) . |
| MLA | Zhao, He et al. "Generation of Wide Color Gamut in a Collisional and Magnetized Plasma by Laser-Induced Coloration on Composite Structure Surfaces" . | ADVANCED OPTICAL MATERIALS 12 . 23 (2024) . |
| APA | Zhao, He , Xia, Tong , Cao, Siyuan , Chen, Yuhao , Zhang, Penglei , Zhang, Qian et al. Generation of Wide Color Gamut in a Collisional and Magnetized Plasma by Laser-Induced Coloration on Composite Structure Surfaces . | ADVANCED OPTICAL MATERIALS , 2024 , 12 (23) . |
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Abstract ：
Mid-infrared hollow-core fiber (HCF) gas lasers based on a population inversion regime of gas molecules have made advanced development in recent years, but mostly with single-pass cavity-free structures. Here, we demonstrated a 3.1 mu m high-power acetylene-filled HCF continuous wave (CW) laser and a self-Q-switched pulse laser with a linear- cavity structure. This configuration not only facilitates the transformation of amplified spontaneous emission into the laser output but also enhances the coherence of the light source and imparts distinct cavity mode characteristics. Harnessing a homemade high-power 1535 nm single-frequency fiber laser that served as the pump source, a CW laser output of 8.23 W at 3.1 mu m was achieved, which is over three orders of magnitude higher than those in reported works so far. The corresponding slope efficiency of 31.8% and beam quality of M x 2 = 1.18 and My y 2 = 1.15 were characterized. When the gas pressure was up to 50 mbar, the laser generated a 3.1 mu m self- Q-switched pulse with an output power of 1.98 Was well as a pulse width of 45 ns under the repetition rate of 4.59 MHz. To the best of our knowledge, this is the first time that an HCF gas laser achieves a self-Q-switched pulse. Future studies will aim to further optimize the experimental setup, potentially enabling the direct generation of picosecond pulses in the mid-infrared wavelength band. (c) 2024 Optica Publishing Group. All rights, including for text and data mining (TDM), Artificial Intelligence (AI) training, and similar technologies, are reserved.
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| GB/T 7714 | Song, Weihua , Zhang, Qian , Zhang, Xin et al. High-power hollow-core fiber gas laser at 3.1 μm with a linear-cavity structure [J]. | OPTICS LETTERS , 2024 , 49 (17) : 4922-4925 . |
| MLA | Song, Weihua et al. "High-power hollow-core fiber gas laser at 3.1 μm with a linear-cavity structure" . | OPTICS LETTERS 49 . 17 (2024) : 4922-4925 . |
| APA | Song, Weihua , Zhang, Qian , Zhang, Xin , Hou, Yubin , Wang, Pu . High-power hollow-core fiber gas laser at 3.1 μm with a linear-cavity structure . | OPTICS LETTERS , 2024 , 49 (17) , 4922-4925 . |
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Abstract ：
We demonstrate an all-fiber high-peak-power nanosecond pulse laser operating at 915 nm. The nanosecond pulse laser source is consisting of a 915 nm modulated laser diode and 4-stage Nd-doped fiber amplifiers. A maximum output power of 2.01 W is achieved with a peak power of 2.2 kW. The peak-to-peak fluctuation is less than +/- 0.2 % and the RMS is 0.084 %. Additionally, the beam quality at output power of 2.01 W is measured to be Mx2 = 1.09, My2 =1.08, indicative of excellent beam characteristics in the output signal. To the best of our knowledge, it is the first report about high-peak-power Nd-doped fiber laser at 915 nm based on all-fiber structure. This work provides a good candidate for the Automotive Lidar with high imaging resolution and detection accuracy.
Keyword ：
Nd-doped fiber laser Nd-doped fiber laser All-fiber structure All-fiber structure High peak power High peak power Nanosecond pulse Nanosecond pulse
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| GB/T 7714 | Zhang, Qian , Hou, Yubin , Li, Xiaoli et al. High-peak-power nanosecond pulse laser at 915 nm based on all-fiber structure [J]. | OPTICS AND LASER TECHNOLOGY , 2024 , 181 . |
| MLA | Zhang, Qian et al. "High-peak-power nanosecond pulse laser at 915 nm based on all-fiber structure" . | OPTICS AND LASER TECHNOLOGY 181 (2024) . |
| APA | Zhang, Qian , Hou, Yubin , Li, Xiaoli , Zhao, He , Wang, Pu . High-peak-power nanosecond pulse laser at 915 nm based on all-fiber structure . | OPTICS AND LASER TECHNOLOGY , 2024 , 181 . |
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Abstract ：
In this study, we demonstrated a few-cycle pulse generation system delivering an 8-fs and 13-nJ pulse. The oscillator of this system is a mode-locked fiber laser based on a nonlinear amplifying loop mirror (NALM), which is injected into the gain management nonlinear (GMN) amplifier after pre-chirp management by a chirped fiber Bragg grating (CFBG) and a passive fiber. Subsequently, a hollow-core photonic bandgap (HC-PBG) fiber is employed to compensate for the dispersion, achieving a pulse duration of 49.8 fs with a pulse energy of 51.8 nJ. Finally, we integrate an ultra-high numerical aperture (UHNA) fiber at the end of the HC-PBG fiber for nonlinear spectral broadening. The resulting spectral range spans from 800 to 1400 nm. Dispersion compensation is achieved using the prism-pair, resulting in a further compression of the pulse duration to 8.2 fs, with a pulse energy of 13.1 nJ and a peak power of 1.59 MW. With an overall system footprint of < 0.1 m(2) and a total volume of < 0.005 m3 , this few-cycle pulse generation system delivers ultra-short pulses with high peak power while maintaining compactness and stability, making it attractive for many applications. (c) 2024 Optica Publishing Group under the terms of the Optica Open Access Publishing Agreement
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| GB/T 7714 | Xia, Tong , Zhao, He , Zhu, Shuyuan et al. Generation of 8-fs and 13-nJ pulse from a Yb-fiber system with nonlinear-pulse-compression [J]. | OPTICS EXPRESS , 2024 , 32 (18) : 32396-32407 . |
| MLA | Xia, Tong et al. "Generation of 8-fs and 13-nJ pulse from a Yb-fiber system with nonlinear-pulse-compression" . | OPTICS EXPRESS 32 . 18 (2024) : 32396-32407 . |
| APA | Xia, Tong , Zhao, He , Zhu, Shuyuan , Cao, Siyuan , Chen, Yuhao , Zhang, Penglei et al. Generation of 8-fs and 13-nJ pulse from a Yb-fiber system with nonlinear-pulse-compression . | OPTICS EXPRESS , 2024 , 32 (18) , 32396-32407 . |
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Abstract ：
Indium selenide (InSe) crystal, as an emerging Van der Waals semiconductor, showed great potential in optical and optoelectronic devices due to its remarkable electron mobility, flexible direct bandgap, and photoresponsivity. Especially, the bulk single-crystalline InSe shows superplastic deformability with the aid of the interlayer gliding and cross-layer dislocation slip. The extraordinary mechanical behavior brings significant opportunities and possibilities to pressure-modulated optical devices, which, however, have not been explored sufficiently. Additionally, InSe crystals are challenged in the rapid large-scale preparation and reproduction due to limitations, such as phase heterogeneity, dissociation risks, and chemical instability. Herein, we proposed a fiber drawing technique to create single-crystalline InSe by the molten core drawing method combined with CO2 laser-induced recrystallization. The fabricated InSe fiber, spanning several meters in length, shows a uniform and directional single-crystalline InSe core encased within a 450 mu m thick protective borosilicate glass cladding. The inherent core-cladding configuration of the InSe fibers not only provides robust protection to the InSe crystals but also seamlessly creates a whispering-gallery-mode microcavity. Utilizing a 532 nm nanosecond pulsed laser as a pump, a tunable lasing from 1076.2 to 1111.8 nm was achieved, dictated by the controlled pressure within the InSe fiber. We present a simple and effective method for single-crystalline InSe fabrication and first achieve a pressure-modulated laser in a near-infrared band based on InSe fiber, heralding an advancement for the scalable, efficient generation of tunable lasers. Single-crystalline indium selenide fibers by laser-induced recrystallization and their tunable whispering-gallery-mode lasing by pressure-modulating. image
Keyword ：
pressure-modulated laser pressure-modulated laser Van der Waals semiconductors Van der Waals semiconductors whispering-gallery-mode microcavity whispering-gallery-mode microcavity single-crystalline InSe fibers single-crystalline InSe fibers
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| GB/T 7714 | Xin, Litao , He, Huiyu , Wang, Xiuhong et al. Single-crystalline indium selenide fibers by laser-induced recrystallization and their tunable whispering-gallery-mode lasing by pressure-modulating [J]. | JOURNAL OF THE AMERICAN CERAMIC SOCIETY , 2024 , 107 (9) : 5801-5809 . |
| MLA | Xin, Litao et al. "Single-crystalline indium selenide fibers by laser-induced recrystallization and their tunable whispering-gallery-mode lasing by pressure-modulating" . | JOURNAL OF THE AMERICAN CERAMIC SOCIETY 107 . 9 (2024) : 5801-5809 . |
| APA | Xin, Litao , He, Huiyu , Wang, Xiuhong , Cheng, Zhaochen , Zhang, Xin , Pan, Shengli et al. Single-crystalline indium selenide fibers by laser-induced recrystallization and their tunable whispering-gallery-mode lasing by pressure-modulating . | JOURNAL OF THE AMERICAN CERAMIC SOCIETY , 2024 , 107 (9) , 5801-5809 . |
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Abstract ：
A yttrium aluminosilicate fiber with a Yb doping concentration of 4.53 wt.% was fabricated by powder-in-tube method, in which the preform core was Yb:YAG ceramic nanopowders synthesized by co-precipitation method. Compared with the method of using YAG crystal rod as fiber core, the fiber composition design can be more flexible and a series of crystal rod processing technology can be circumvented. The absorption coefficient of the Yb-doped YAS fibers was measured 28.4 dB/cm at 976 nm. A single-frequency fiber laser was constructed with the YAS fiber length of 1cm. To our knowledge, this is the first time that rare earth (RE) doped YAS fiber prepared by powder-in-tube method was used in fiber laser. (C) 2022 Optics Publishing Group under the terms of the Optics Open Access Publishing Agreement
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| GB/T 7714 | Qi, Fuxin , Zheng, Baoluo , Yang, Jing et al. Fabrication of yttrium aluminosilicate fibers with high Yb3+ doping from Yb:YAG ceramic nanopowders and its application in single-frequency fiber lasers [J]. | OPTICAL MATERIALS EXPRESS , 2022 , 12 (3) : 876-884 . |
| MLA | Qi, Fuxin et al. "Fabrication of yttrium aluminosilicate fibers with high Yb3+ doping from Yb:YAG ceramic nanopowders and its application in single-frequency fiber lasers" . | OPTICAL MATERIALS EXPRESS 12 . 3 (2022) : 876-884 . |
| APA | Qi, Fuxin , Zheng, Baoluo , Yang, Jing , Liu, Jinming , Li, Biao , Zhang, Xin et al. Fabrication of yttrium aluminosilicate fibers with high Yb3+ doping from Yb:YAG ceramic nanopowders and its application in single-frequency fiber lasers . | OPTICAL MATERIALS EXPRESS , 2022 , 12 (3) , 876-884 . |
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Abstract ：
A high-average-power, high-pulse-energy picosecond chirped pulse amplification (CPA) laser system based on an extra-large-mode-area (XLMA) triple-clad fiber (TCF) was demonstrated. The ultrashort pulses, generated from all-fiber mode-locked oscillator, stretched and then were pre-amplified to 10 W through a series of fiber power amplifiers. Subsequently, the average output power was amplified to 620 W corresponding to a pulse energy of 0.62 mJ via XLMA TCF. Additionally, the amplified pulses were compressed to a pulse duration of 7.6 ps with an average power of 423 W and a compression efficiency of 68.2%. The ultrashort laser is a promising light source for application of water-guided laser processing, albeit with a beam quality factor of 20 and 21 along two orthogonal axes.
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| GB/T 7714 | Wang, Beibei , Peng, Zhigang , Cheng, Zhaochen et al. High-power 0.4-mJ picosecond CPA system based on an extra- large-mode- area triple-clad fiber [J]. | OPTICS EXPRESS , 2022 , 30 (23) : 41171-41180 . |
| MLA | Wang, Beibei et al. "High-power 0.4-mJ picosecond CPA system based on an extra- large-mode- area triple-clad fiber" . | OPTICS EXPRESS 30 . 23 (2022) : 41171-41180 . |
| APA | Wang, Beibei , Peng, Zhigang , Cheng, Zhaochen , Xu, Yan , Wang, Pu . High-power 0.4-mJ picosecond CPA system based on an extra- large-mode- area triple-clad fiber . | OPTICS EXPRESS , 2022 , 30 (23) , 41171-41180 . |
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Abstract ：
As laser technology has gradually been integrated into our life, it serves as a promising tool for artistic creation. By means of advanced science and technology in this field, we expect to improve the design of traditional arts and crafts to an innovative level. In this paper, we presented a multifunctional laser paintbrush for creating traditional artistic pictures on metallic surface. We demonstrated that our laser paintbrush has three basic functions: coloring, erasing and rewriting. Firstly, the process of laser-induced coloration on titanium surface were investigated experimentally and theoretically. Then, the influences of laser parameters on laser-induced coloration were quantitatively evaluated and this color durability in terms of time, chemical and environ-mental resistance was examined. Moreover, we proposed using ultrafast pulsed laser to selectively erase the colored areas in ethanol and nitrogen atmosphere. We found that our laser paintbrush had high erasing quality on the colored surface. Rewriting in the erased fields can increase the saturation and lightness of colors. Finally, with this multifunctional laser paintbrush, we successfully created traditional artistic pictures with different colors on metals with this multifunctional laser paintbrush.
Keyword ：
Laser erasing Laser erasing Laser coloring Laser coloring Traditional artistic pictures Traditional artistic pictures Laser paintbrush Laser paintbrush
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| GB/T 7714 | Zhao, He , Zhang, Qian , Hou, Yubin et al. Color visual art creation on metals via multifunctional laser paintbrush [J]. | OPTICS AND LASER TECHNOLOGY , 2022 , 159 . |
| MLA | Zhao, He et al. "Color visual art creation on metals via multifunctional laser paintbrush" . | OPTICS AND LASER TECHNOLOGY 159 (2022) . |
| APA | Zhao, He , Zhang, Qian , Hou, Yubin , Cheng, Zhaochen , Xia, Tong , Cao, Siyuan et al. Color visual art creation on metals via multifunctional laser paintbrush . | OPTICS AND LASER TECHNOLOGY , 2022 , 159 . |
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Abstract ：
Objective Since the first observation of light guidance in a hollow-core optical fiber ( HCF) in 1999, the development of the HCF has attracted much attention in the last two decades. The presence of the microstructure in the cladding allows the HCF to confine most of the light energy in the hollow core of the fiber. This makes it possible to break the limitations of conventional solid-state fibers with the benefits of low nonlinear effects, high damage thresholds, low transmission losses, low latency, etc. Especially, the breakthrough results in dramatic loss reduction achieved by a hollow-core anti-resonant fiber (HC-ARF) make this kind of fiber become one of the most remarkable and promising fiber types nowadays. In the present study, a 5-tube nested hollow-core anti-resonant fiber (Nested HC-ARF) is investigated, which exhibits outstanding optical performances in terms of O. 38 dB/km attenuation at around 1550 nm and excellent modal purity. Methods The Nested HC-ARF is fabricated using the modified stack-and-draw method, in which the 5 nested capillaries are first stacked and fused inside a jacket tube and then drawn to the intermediate canes. Subsequently these canes are scaled down to fiber dimensions using a conventional cane-in-tube process. The thickness of the inner and outer tubes is carefully controlled by holding the differential pressure to satisfy the anti-resonance conditions at the designed operational wavelength. Finally the uncontrolled distortions are maximally suppressed by drawing the fiber under a relatively low furnace temperature and very high drawing tension. Results and Discussions The fundamental transmission band of the fabricated Nested HC-ARF starts at around 1265 nm and extends beyond 1700 nm. The average attenuation value of 0.38 dB/km is achieved from 1545 nm to 1660 nm, which covers the optical telecommunication C and L bands. The uncertainty shown by the grayed region arises from cleave-to-cleave variability. Loss peaks appearing in the short wavelength edge of the transmission band from 1340 nm to 1500 nm can be attributed to H2O absorption. By proper argon gas purging, these absorption-induced loss peaks can be greatly suppressed. In addition, we estimate the LP. mode loss of similar to 2. 96 dB/m by cutback measurements with the spatial and spectral imaging technique. This is equivalent to the higher-order mode (HOM) suppression ratio of our Nested HC-ARF exceeding 38 dB, which is guaranteed by the resonant coupling provided by the well-designed fiber structure. It confirms that the combination of suitable excitation, intrinsic HOM loss discrimination and length of the fiber does indeed lead to high modal purity and effective single-mode guidance. Conclusions We have fabricated a 5-tube Nested HC-ARF with an outstanding optical performance. This Nested HC-ARF possesses an average attenuation value of 0. 38 dB/km from 1545 nm to 1660 nm. The excellent modal purity of the fiber is also experimentally verified. We believe that this fiber is attractive to many applications such as long-haul data transmission.
Keyword ：
fiber optics fiber optics ultralow transmission loss ultralow transmission loss hollow-core anti-resonant fiber hollow-core anti-resonant fiber fiber component fiber component single mode single mode
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| GB/T 7714 | Zhang Xin , Dong Zihan , Yao Jingyuan et al. Homemade Nested Hollow-Core Anti-Resonant Fiber with 0.38 dB/km Ultralow Attenuation in C and L Bands [J]. | CHINESE JOURNAL OF LASERS-ZHONGGUO JIGUANG , 2022 , 49 (11) . |
| MLA | Zhang Xin et al. "Homemade Nested Hollow-Core Anti-Resonant Fiber with 0.38 dB/km Ultralow Attenuation in C and L Bands" . | CHINESE JOURNAL OF LASERS-ZHONGGUO JIGUANG 49 . 11 (2022) . |
| APA | Zhang Xin , Dong Zihan , Yao Jingyuan , Wan Shuangqin , Wang Pu . Homemade Nested Hollow-Core Anti-Resonant Fiber with 0.38 dB/km Ultralow Attenuation in C and L Bands . | CHINESE JOURNAL OF LASERS-ZHONGGUO JIGUANG , 2022 , 49 (11) . |
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