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| 1 | High energy soliton pulse generation by a magnetron-sputtering-deposition-grown MoTe_2 saturable absorber显示文摘The pulse energy in the ultrafast soliton fiber laser oscillators is usually limited by the well-known wave-breaking phenomenon owing to the absence of a desirable real saturable absorber(SA) with high power tolerance and large modulation depth. Here, we report a type of microfiber-based MoTe_2 SA fabricated by the magnetron-sputtering deposition(MSD) method. High-energy wave-breaking free soliton pulses were generated with pulse duration/pulse energy/average output power of 229 fs/2.14 nJ/57 mW in the 1.5 μm regime and 1.3 ps/13.8 nJ/212 mW in the 2 μm regime, respectively. To our knowledge, the generated soliton pulses at 1.5 μm had the shortest pulse duration and the highest output power among the reported erbium-doped fiber lasers mode locked by transition metal dichalcogenides. Moreover, this was the first demonstration of a MoTe_2-based SA in fiber lasers in the 2 μm regime, and the pulse energy/output power are the highest in the reported thulium-doped fiber lasers mode locked by two-dimensional materials. Our results suggest that a microfiber-based MoTe_2 SA could be used as an excellent photonic device for ultrafast pulse generation, and the MSD technique opens a promising route to produce a high-performance SA with high power tolerance and large modulation depth, which are beneficial for high-energy wave-breaking free pulse generation. | JINTAO WANG ZIKE JIANG HAO CHEN JIARONG LI JINDE YIN JINZHANG WANG TINGCHAO HE PEIGUANG YAN SHUANGCHEN RUAN | 2018 | Photonics Research2018，6，6： | 14 |
| 2 | Scaling all-fiber mid-infrared supercontinuum up to 10 W-level based on thermal-spliced silica fiber and ZBLAN fiber显示文摘We demonstrate an integrated all-fiber mid-infrared(mid-IR)supercontinuum(SC)source generated by a 1.95μm master oscillator power amplifier system and a single-mode ZBLAN(ZrF_4–BaF_2–LaF_3–AlF_3–NaF)fiber.The maximum average output power is 10.67 W with spectral bandwidth covering from~1.9 to 4.1μm.The single-mode ZBLAN fiber and silica fiber are thermal-spliced to enhance the robustness and practicability of the system.It is,to the best of our knowledge,the first high-power integrated compacted all-fiber mid-IR SC source based on thermal-spliced silica fiber and ZBLAN fiber. | Zhijian Zheng Deqin Ouyang Junqing Zhao Minqiu Liu Shuangchen Ruan Peiguang Yan Jinzhang Wang | 2016 | Photonics Research2016，4，4： | 13 |
| 3 | Efficient improvement of 2.7 μm luminescence of Er^(3+):oxyfluoride glass containing gallium by Yb^(3+) ions codoping显示文摘Mid-infrared laser materials with low phonon energy have significant applications. However, the development of available glass systems for high-power laser gain medium have posed a great challenge.Therefore, we investigated the 2.7 μm spectroscopic properties of Er^(3+)/Yb^(3+) -codoped oxyfluoride glass containing gallium, which were prepared by typically melting and quenching methods. The 2.7 μm luminescence properties of the Er^(3+)/Yb^(3+)-codoped oxyfluoride glass containing gallium were recorded by a 980 nm laser diode. The Judde Ofelt parameters, decay curves, emission cross section, energy transfer efficiency and quantum efficiency were calculated. The maximum emission cross section of YbFGa-0.5 is 1.63 × 10^(-20) cm^2 by 980 nm excitation. The energy transfer efficiency is calculated to be77.8% for the YbFGa-0.5 glass around 2700 nm. The quantum efficiency at 1530 nm is 65.6%. The result reveals that the best doping concentration ratio of Er^(3+):Yb^(3+) ions is 1:0.5, and suggests an effective energy transfer from Yb^(3+) to Er^(3+) ions. | Yapei Peng Xinqiang Yuan Long Zhang Peiguang Yan Wenfei Zhang Shuangchen Ruan | 2019 | Journal of Rare Earths2019，37，5： | 5 |
| 4 | Refractive Index and Strain Sensitivities of a Long Period Fiber Grating显示文摘CO2 激光照耀在所有固体 photonic bandgap 纤维之上制作的一个长时期纤维栅栏(LPFG ) 被调查,并且它的回声波长在有 15 dB 的调整深度和 2.6 nm 的 3-dB 带宽的 1335.76 nm。我们学习了它的种类,温度,和索引传感器特征, 0.992 pm/ 的种类敏感被使用获得线性适合,并且在折射索引和波长之间的关系服从了二次的功能的分发。另外,我们证明它的温度反应是相对感觉迟钝的(21.51 pm/ | Quandong Huang Yongqin Yu Zhilong Ou Xue Chen Jishun Wang Peiguang Yan Chenlin Du | 2014 | Photonic Sensors2014，4，1： | 2 |
| 5 | Real-time observation of vortex mode switching in a narrow-linewidth mode-locked fiber laser显示文摘Temporal and spatial resonant modes are always possessed in physical systems with energy oscillation.In ultrafast fiber lasers,enormous progress has been made toward controlling the interactions of many longitudinal modes,which results in temporally mode-locked pulses.Recently,optical vortex beams have been extensively investigated due to their quantized orbital angular momentum,spatially donut-like intensity,and spiral phase front.In this paper,we have demonstrated the first to our knowledge observation of optical vortex mode switching and their corresponding pulse evolution dynamics in a narrow-linewidth mode-locked fiber laser.The spatial mode switching is achieved by incorporating a dual-resonant acousto-optic mode converter in the vortex mode-locked fiber laser.The vortex mode-switching dynamics have four stages,including quiet-down,relaxation oscillation,quasi mode-locking,and energy recovery prior to the stable mode-locking of another vortex mode.The evolution dynamics of the wavelength shifting during the switching process are observed via the time-stretch dispersion Fourier transform method.The spatial mode competition through optical nonlinearity induces energy fluctuation on the time scale of ultrashort pulses,which plays an essential role in the mode-switching dynamic process.The results have great implications in the study of spatial mode-locking mechanisms and ultrashort laser applications. | Jiafeng Lu Fan Shi Linghao Meng Longkun Zhang Linping Teng Zhengqian Luo Peiguang Yan Fufei Pang Xianglong Zeng | 2020 | Photonics Research2020，8，7： | 2 |
| 6 | Drawing an ultra-low loss all-solid photonic bangap fiber for ytterbium ASE suppression 显示文摘 | Yan Peiguang Zhao Jian Ruan Shuangchen | 2010 | Microwave and Opti- cal Technology Letters2010，52，12： | 1 |
| 7 | Temperature Insensitive Bending Sensor Based on In-Line Mach-Zehnder Interferometer显示文摘基于 Mach-Zehnder 干涉仪把传感器弄弯的简单、紧缩的纤维被建议。有一段 10 公里的 photonic 水晶纤维(PCF ) 被与二常规单个模式纤维折叠空气洞由组成拼接一弯曲的所有纤维传感器。0.53 nm/m 的敏感 < 啜 class= “ a-plus-plus ” > 1 从 0 ~ 8.514 m 为弯曲范围在 1586 nm 被获得 < 啜 class= “ a-plus-plus ” > 1 。温度敏感是很低的。测量错误由于温度效果是大约 8. | Xue CHEN Yongqin YU Xiaomei XU Quandong HUANG Zhilong OU Jishun WANG Peiguang YAN and Chenlin DU | 2014 | Photonic Sensors2014，4，3： | 1 |
| 8 | Temperature and index insensitive strain sensor based on a photonic crystal fiber in line Mach-Zehnder interferometer显示文摘 | Zheng Jiarong Yan Peiguang Yu Yongqin | 2013 | Optics Communications2013，297，1： | 1 |
| 9 | Double cladding seven-core photonic crystal fibers with different GVD properties and fundamental supermode output 显示文摘 | Yan Peiguang Zhang Gelin Wei Huifeng | 2013 | Journal of Lightwave Technology2013，31，23： | 1 |
| 10 | Polari- zation dependent visible supercontinuum generation in the nanoweb fiber 显示文摘 | Yan Peiguang Shu Jie Ruan Shuangchen | 2011 | Optics Express2011，19，6： | 1 |
| 11 | A low-cost, CW-pumped supercontinuum source 显示文摘 | Guo Chunyu Ruan Shuangchen Yan Peiguang | 2013 | Laser Physics2013，23，5： | 1 |
| 12 | High-power mid-infrared femtosecond master oscillator power amplifier Er:ZBLAN fiber laser system显示文摘High-power femtosecond mid-infrared(MIR)lasers are of vast importance to both fundamental research and applications.We report a high-power femtosecond master oscillator power amplifier laser system consisting of a singlemode Er:ZBLAN fiber mode-locked oscillator and pre-amplifier followed by a large-mode-area Er:ZBLAN fiber main amplifier.The main amplifier is actively cooled and bidirectionally pumped at 976 nm,generating a slope efficiency of 26.9%.Pulses of 8.12 W,148 fs at 2.8μm with a repetition rate of 69.65 MHz are achieved.To the best of our knowledge,this is the highest average power ever achieved from a femtosecond MIR laser source.Such a compact ultrafast laser system is promising for a wide range of applications,such as medical surgery and material processing. | Linpeng Yu Jinhui Liang Qinghui Zeng Jiacheng Wang Xing Luo Jinzhang Wang Peiguang Yan Fanlong Dong Xing Liu Qitao Lü Chunyu Guo Shuangchen Ruan | 2023 | High Power Laser Science and Engineering2023，11，4： | 0 |
| 13 | Generation of single solitons tunable from 3 to3.8μm in cascaded Er^(3+)-doped and Dy^(3+)-doped fluoride fiber amplifiers显示文摘High-power tunable femtosecond mid-infrared(MIR)pulses are of great interest for many scientific and industrial applications.Here we demonstrate a compact fluoride-fiber-based system that generates single solitons tunable from 3 to 3.8μm.The system is composed of an Er:ZBLAN fiber oscillator and amplifier followed by a fusion-spliced Dy:ZBLAN fiber amplifier.The Er:ZBLAN fiber amplifier acts as a power booster as well as a frequency shifter to generate Raman solitons up to 3μm.The Dy:ZBLAN fiber amplifier transfers the energy from the residual 2.8μm radiation into the Raman solitons using an in-band pumping scheme,and further extends the wavelength up to 3.8μm.Common residual pump radiation and secondary solitons accompanying the soliton self-frequency shift(SSFS)are recycled to amplify Raman solitons,consequently displaying a higher output power and pulse energy,a wider shifting range,and an excellent spectral purity.Stable 252 fs pulses at3.8μm with a record average power of 1.6 W and a pulse energy of 23 n J are generated.This work provides an effective way to develop high-power widely tunable ultrafast single-soliton MIR laser sources,and this method can facilitate the design of other SSFS-based laser systems for single-soliton generation. | LINPENG YU JINHUI LIANG SHITING HUANG JINZHANG WANG JIACHEN WANG XING LUO PEIGUANG YAN FANLONG DONG XING LIU QITAO LUE CHUNYU GUO SHUANGCHEN RUAN | 2022 | Photonics Research2022，10，9： | 0 |
| 14 | Low-bias,high-photoresponsivity SnSe2 nanofilm with an Au split-ring array-based THz detector toward 6G communication显示文摘6G technology with the four characteristics of an intelligent endogenous,secure endogenous,multi-domain convergence,and integrated computing network,will help society toward an intelligent era[1].The low power consumption and high photoresponsivity of 6G core devices,and particularly the improvement of detector performance. | Qi SONG Zhiwen ZHOU Yifei XU Min ZHANG Junbo YANG Huawei LIANG Tianwu WANG Peiguang YAN | 2023 | Science China(Information Sciences)2023，66，6： | 0 |
| 15 | Memristive switching in two-dimensional BiSe crystals显示文摘In spite of the explosive rise of research on memristive switching,more improvements in tunability,versatility,and hetero-integration are required through the discovery and application of novel materials.Herein,we report resistance switching in nano-thick two-dimensional(2D)crystals of bismuth selenium(BiSe).The BiSe devices exhibit nonvolatile bipolar resistance switching,volatile switching,and electrical bistable behavior in different conditions.The different memristive behavior of BiSe devices may be related to the concentration of Bi ions in this Bi-rich structure,which directly affects the capability of filaments forming.Furthermore,the external mechanical strain is applied in modulation of multi-layer BiSe devices.The memristive BiSe devices show a large on/off ratio of~10^(4)and retention time of~104 s.The discovery of memristive switching behavior in multi-layer BiSe is attributed to the forming of Bi filaments.The resistance switching behavior in multi-layer BiSe demonstrates the potential application in the flexible memories and functional integrated devices. | Wenda Ma Junfeng Lu Shuaipeng Ge Li Zhang Fengchang Huang Naiwei Gao Peiguang Yan Caofeng Pan | 2023 | Nano Research2023，16，2： | 0 |
| 16 | Heterogeneous integrated phase modulator based on two-dimensional layered materials显示文摘Silicon nitride,with ultralow propagation loss and a wide transparency window,offers an exciting platform to explore integrated photonic devices for various emerging applications.It is appealing to combine the intrinsic optical properties of two-dimensional layered materials with high-quality optical waveguides and resonators to achieve functional devices in a single chip.Here we demonstrate a micro-ring resonator-based phase modulator integrated with few-layer MoS_(2).The ionic liquid is employed directly on the surface of MoS_(2) to form a capacitor configuration.The effective index of the composite MoS_(2)–SiN waveguide can be modulated via adjusting bias voltages to achieve different charged doping induced electro-refractive responses in MoS_(2) film.The maximum effective index modulation of the composite MoS_(2)–SiN waveguide can be achieved to 0.45×10^(−3).The phase tuning efficiency is measured to be 29.42 pm/V,corresponding to a V_(π)L of 0.69 V·cm.Since the micro-ring resonator is designed near the critical coupling regime,the coupling condition between the bus waveguide and micro-ring resonator can also be engineered from under-coupling to over-coupling regime during the charged doping process.That can be involved as a degree of freedom for the coupling tailoring.The ability to modulate the effective index with two-dimensional materials and the robust nature of the heterostructure integrated phase modulator could be useful for engineering reliable ultra-compact and low-power-consumption integrated photonic devices. | HAO CHEN ZEXING ZHAO ZIMING ZHANG GUOQING WANG JIATONG LI ZHENYUAN SHANG MENGYU ZHANG KAI GUO JUNBO YANG PEIGUANG YAN | 2022 | Photonics Research2022，10，6： | 0 |
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