Article
Materials Science, Ceramics
V. Fuertes, F. E. Durak, V. A. G. Rivera, N. Gregorie, S. Morency, M. Sharma, L. Wang, Y. Messaddeq, S. LaRochelle
Summary: By adjusting the glass composition, preform, and fiber fabrication conditions, the number density of bismuth active centers (BACs) in the E and S bands can be significantly tailored and increased, resulting in enhanced luminescence and gain.
JOURNAL OF NON-CRYSTALLINE SOLIDS
(2023)
Article
Engineering, Electrical & Electronic
Vitaly Mikhailov, Jiawei Luo, Daryl Inniss, Man F. Yan, Yingzhi Sun, Gabriel S. Puc, Robert S. Windeler, Paul S. Westbrook, Yuriy Dulashko, David J. DiGiovanni
Summary: This paper reviewed different optical amplification technologies beyond C- and L- bands and discussed their advantages and disadvantages. It was found that these technologies have not been implemented in practical systems due to the sufficient capacity provided by C- and L- bands amplified systems and the lack of a complete optical components ecosystem. However, O-band amplification may be an attractive solution as it can meet the overall capacity demand and power budget reduction requirements caused by the increasing bit rate of pluggable modules.
JOURNAL OF LIGHTWAVE TECHNOLOGY
(2022)
Article
Optics
Arni Munira Markom, Ahmad Razif Muhammad, Mukul Chandra Paul, Sulaiman Wadi Harun
Summary: This article demonstrates and compares the performance of three different fibers as the gain medium for erbium-doped fiber amplifiers (EDFAs). The study shows that zirconia-erbium-doped fibers (Zr-EDF) perform the best, with highest optical gain, longest transmission distance, highest average flatness gain with minimal jitter, and relevant noise figures suitable for the latest communication technology.
CURRENT OPTICS AND PHOTONICS
(2022)
Article
Computer Science, Information Systems
Rosa Ana Perez-Herrera, Pablo Roldan-Varona, Luis Rodriguez Cobo, Jose Miguel Lopez-Higuera, Manuel Lopez-Amo
Summary: A new distributed short linear cavity fiber laser has been proposed and experimentally demonstrated, capable of generating switchable single longitudinal-mode laser emissions. By using a reflector doped with erbium as a saturable absorber, multiple single-mode emissions can be achieved.
Article
Chemistry, Multidisciplinary
Alberto Facchini, Adriana Morana, Luciano Mescia, Cosimo Campanella, Md Mizan Kabir Shuvo, Thierry Robin, Emmanuel Marin, Youcef Ouerdane, Aziz Boukenter, Sylvain Girard
Summary: This study investigates the radiation-dependent performance of erbium-doped fiber amplifiers (EDFAs) using experimental and simulation methods. A new experimental setup is introduced to better consider the photobleaching mechanisms related to pumping at 980 nm.
APPLIED SCIENCES-BASEL
(2023)
Article
Engineering, Electrical & Electronic
Minglu Cai, Kan Wu, Junmin Xiang, Zeyu Xiao, Tieying Li, Chao Li, Jianping Chen
Summary: Erbium-doped lithium niobate on insulator (Er:LNOI) has shown potential for gain and integrated amplifiers and lasers. We present a highly efficient waveguide amplifier on Er:LNOI with excellent performance and wide application prospects.
IEEE JOURNAL OF SELECTED TOPICS IN QUANTUM ELECTRONICS
(2022)
Article
Optics
Yan Chen, Weiqi Wang, Yuanyuan Yang, Jianxiang Wen, Yanhua Dong, Yana Shang, Yanhua Luo, Tingyun Wang
Summary: Bismuth doped fiber (BDF) and bismuth/phosphosilicate co-doped fiber (BPDF) were fabricated using atomic layer deposition (ALD) combined with modified chemical vapor deposition (MCVD). The spectral characteristics of the fibers were experimentally studied, showing that BPDF has good excitation effect in the O band. A diode pumped BPDF amplifier with a gain over 20 dB from 1298-1348 nm (50 nm) was demonstrated, with a maximum gain of 30 dB observed at 1320 nm and a gain coefficient of around 0.5 dB/m. Simulation results also showed that BPDF has a stronger excited state and greater significance in the O-band compared to BDF, mainly due to the formation of bismuth-phosphorus active centers through phosphorus (P) doping. The high gain coefficient of the fiber is of great importance for the industrialization of O-band fiber amplifiers.
Article
Engineering, Electrical & Electronic
Lihong Wang, Tigang Ning, Changzheng Ma, Li Pei, Jingjing Zheng, Dingchen Wang, Wenxuan Xu, Wenqiang Hou, Jing Li, Jianshuai Wang
Summary: In this paper, a model of the dual-pass BDFA is constructed and compared with the single-pass BDFA. The effect of the loss of the reflected part of the dual-pass structure on the gain is analyzed by numerical simulation. A reflector-based signal and pump dual-pass O-band bismuth-doped phosphosilicate fiber amplifier is proposed.
OPTICAL FIBER TECHNOLOGY
(2023)
Article
Engineering, Electrical & Electronic
Taiji Sakamoto, Masaki Wada, Shinichi Aozasa, Ryota Imada, Takashi Yamamoto, Kazuhide Nakajima
Summary: By adjusting the length of the erbium-doped fiber, a 12-core EDFA can operate in both C and L bands, demonstrating good amplification characteristics and applicability for inline amplified transmission systems. The study found that for long-distance SDM transmission, MDL impacts the power efficiency of randomly coupled multi-core EDFAs.
JOURNAL OF LIGHTWAVE TECHNOLOGY
(2021)
Article
Optics
Lu Ren, Tongle Yuan, Yu Cheng, Ming Chen, Xuanke Tong, Shijie Deng, Houquan Liu, Chuanxin Teng, Hongyan Yang, Hongchang Deng, Libo Yuan
Summary: In this study, the temperature sensing properties and intrinsic mechanism of a bismuth-erbium co-doped optical fiber (BEDF) were explored. The fluorescence intensity ratio (FIR) at 1560 and 1435 nm showed a good linear relationship with different temperatures when a 980-nm pump laser was used. The sensor exhibited high sensitivity and accuracy, and a detection algorithm was proposed to determine its working state. Changing the coating material during fiber fabrication could further expand the temperature measurement range, broadening the applications of optical fiber temperature sensors.
OPTICAL ENGINEERING
(2022)
Article
Chemistry, Analytical
Xiaozhou Fan, Wenqi Zhang, Fangcheng Lu, Yueyi Sui, Jiaxue Wang, Ziqiang Xu
Summary: This study synthesized a new fluorescent material CSO:Mn2+ to improve the temperature measurement effect of the sensor, making a significant contribution to the development of fluorescent optical fiber temperature sensors.
Article
Engineering, Electrical & Electronic
Saber Jalilpiran, Victor Fuertes, Jacques Lefebvre, Nicolas Gregoire, Firat Ertac Durak, Nelson Landry, Lixian Wang, Victor Anthony Garcia Rivera, Younes Messaddeq, Sophie LaRochelle
Summary: We have developed baria-silica erbium-doped fibers (Ba-EDF) using modified chemical vapor deposition (MCVD) process and solution-doping technique to extend the bandwidth of L-band EDFAs beyond 1620 nm. The low loss (<10 dB/km at 1200 nm) fiber cores with BaO concentration of 1-3 mol% and Er3+ concentration of 8x10(24) m(-3) were successfully achieved. Increasing the BaO content positively affected the optical properties and EDFA performance, showing a reduction in pair-induced quenching and a bi-exponential luminescence decay with a dominant 15.5 ms lifetime component. The absorption/emission coefficients also revealed a red-shift in the signal excited state absorption, leading to a moderate extension of the L-band gain to longer wavelengths (1622 nm).
JOURNAL OF LIGHTWAVE TECHNOLOGY
(2023)
Article
Materials Science, Multidisciplinary
Hongfei Li, Xiaoqi Liu, Chen Lyu, Feng Ma, Huanqing Ye, Peter. B. Wyatt, William P. Gillin
Summary: By the sensitization effect of metallophthalocyanines showing similar to 980 nm emission to an erbium complex, a remarkably long average lifetime of 1.05 ms and an optimal PLQY of 13% with a sensitization efficiency of 81 for the Er3+ 1.54 mu m emission are obtained in a perfluorinated organic erbium co-doped system.
JOURNAL OF MATERIALS CHEMISTRY C
(2021)
Article
Engineering, Electrical & Electronic
Jiandong Liu, Liang Chu, Bin Liu, Juan Liu, Yingying Hu, Xing-Dao He, Jinhui Yuan, Yangbo Zhou, Dejun Liu, Zabih Ghassemlooy, James Martin, Yong Qing Fu, Qiang Wu
Summary: This study proposes and experimentally demonstrates a highly sensitive hydrogen sensor coated with Pt/WO3 powder and erbium-doped fiber amplifier (EDFA). The sensor is constructed by splicing a tapered small-diameter coreless fiber (TSDCF) between two single-mode fibers (SMFs). The Pt/WO3 powder on the surface of a polydimethylsiloxane (PDMS) film coated on the TSDCF structure serves as the hydrogen-sensitive material. An EDFA is introduced to improve the Q factor and resolution of the sensor's output spectrum. The sensor exhibits good stability with a light intensity fluctuation of less than 1.26 dB over a 30-minute duration, and a maximum light intensity variation and sensitivity of -32.41 dB and -21.25 dB/%, respectively, when the hydrogen concentration varies from 0% to 1.44%.
IEEE SENSORS JOURNAL
(2023)
Article
Engineering, Electrical & Electronic
Yuan Li, Yang Shen, Jiajun Tian, Qi Fu, Yong Yao
Summary: A novel multi-wavelength erbium-doped fiber laser with wavelength switchable capabilities is demonstrated based on PDL modulation and cascaded FBGs as wavelength comb filters. The PDL modulation balances the total loss and lasing gain, allowing for the creation of multiple lasing lines by adjusting PDLs in different wavelengths. The experiment successfully verifies the switching operation for single to four-wavelength laser outputs by adjusting the polarization controllers.
JOURNAL OF LIGHTWAVE TECHNOLOGY
(2021)
Article
Engineering, Electrical & Electronic
Ghazal Tafti, John Canning, Shuai Wang, Yanhua Luo, Kevin Cook, Gang-Ding Peng
Summary: The impact of drawing pressure on the structure of solid-core structured optical fibres (SOFs) is investigated using a modified model, which shows that the effective pressure is approximately one-fifth less than the applied air pressure. Additionally, the model suggests that when examining birefringent SOFs with thinner walls and asymmetric holes, the reduction in effective pressure is found to be about one-quarter of the applied pressure.
OPTICAL FIBER TECHNOLOGY
(2021)
Article
Chemistry, Analytical
Kawsar Ahmed, Mohammed A. AlZain, Hasan Abdullah, Yanhua Luo, Dhasarathan Vigneswaran, Osama S. Faragallah, Mahmoud M. A. Eid, Ahmed Nabih Zaki Rashed
Summary: The study introduces a plasmonic material-coated C-PCF sensor based on SPR, offering high sensitivity for RI sensing within a specific wavelength range. The sensor, designed with a nano-ring gold layer and MgF2 coating, demonstrates excellent sensing performance in experiments.
Article
Energy & Fuels
Graham Town, Seyedfoad Taghizadeh, Sara Deilami
Summary: This paper provides a comprehensive review of fast and ultra-fast charging technology and systems, covering various aspects such as charging demand trends, electricity demand characteristics, devices and circuit technologies, system impact management, long-term planning, and future developments.
Article
Physics, Multidisciplinary
Jiaying Wang, Zimeng Wu, Jing Kong, Kuoyuan Wang, Yushi Chu, Yanhua Luo, Jianzhong Zhang, Gang-Ding Peng
Summary: This paper introduces the application of 3D printing in the development of special silica optical fibers (SOFs), including technical aspects and prospects, as well as the material processing flow of SOFs based on 3D digital light processing technology. The authors also demonstrate the efficiency and effectiveness of the continuous debinding-sintering process in producing desirable results, and discuss the remaining challenges and possible solutions in further development of 3D SOFs.
EUROPEAN PHYSICAL JOURNAL-SPECIAL TOPICS
(2022)
Article
Engineering, Electrical & Electronic
Shuen Wei, Ming Lu, Yanhua Luo, Bowen Zhang, Yitao Wang, Matthieu Lancry, John Canning, Gang-Ding Peng
Summary: The study found that an irreversible reduction in optical losses can be achieved through multiple annealing cycles at 800 degrees Celsius. Changes in Raman spectroscopy confirmed densification of the core, and the temperature-dependent loss in the fiber was consistent with modal field overlap at the core-cladding interface.
IEEE PHOTONICS TECHNOLOGY LETTERS
(2022)
Article
Optics
Joao M. B. Pereira, Lars Gruner-Nielsen, Karsten Rottwitt, Graham Town, Fredrik Laurell, Walter Margulis
Summary: This study demonstrates the use of the electrooptic effect to control the propagation constant of guided modes in silicate few mode fibers with internal electrodes. By inducing a perturbation of the fiber's refractive index profile, intermodal interference can be controlled. Poling the silicate fibers increases the electrooptic effect, resulting in a nanosecond response time.
Article
Engineering, Electrical & Electronic
Ye Tian, Gui Xiao, Yanhua Luo, Jianzhong Zhang, Libo Yuan
Summary: This article reviews the development of nanoliter liquid sensors based on microhole fiber, outlining their characteristics and advantages, and aims to provide useful reference for researchers and students.
OPTICAL FIBER TECHNOLOGY
(2022)
Article
Optics
Jiaqi Huang, Jianxiang Wen, Ying Wan, Yan Wu, Yanhua Luo, Iaobei Zhang, Sujuan Huang, Fufei Pang, Tingyun Wang
Summary: In this study, an Er:YAG crystal-derived silica fiber was fabricated using a CO2 laser-heating drawing technique, and a continuous-wave ring-cavity single frequency fiber laser (SFFL) was constructed. The SFFL exhibited high output power of 32.7 mW, narrow linewidth, excellent stability, and low noise, making it a promising candidate for coherent optical communications, high-precision sensors, laser radars, and other advanced applications.
Article
Optics
Yan Chen, Weiqi Wang, Yuanyuan Yang, Jianxiang Wen, Yanhua Dong, Yana Shang, Yanhua Luo, Tingyun Wang
Summary: Bismuth doped fiber (BDF) and bismuth/phosphosilicate co-doped fiber (BPDF) were fabricated using atomic layer deposition (ALD) combined with modified chemical vapor deposition (MCVD). The spectral characteristics of the fibers were experimentally studied, showing that BPDF has good excitation effect in the O band. A diode pumped BPDF amplifier with a gain over 20 dB from 1298-1348 nm (50 nm) was demonstrated, with a maximum gain of 30 dB observed at 1320 nm and a gain coefficient of around 0.5 dB/m. Simulation results also showed that BPDF has a stronger excited state and greater significance in the O-band compared to BDF, mainly due to the formation of bismuth-phosphorus active centers through phosphorus (P) doping. The high gain coefficient of the fiber is of great importance for the industrialization of O-band fiber amplifiers.
Article
Engineering, Electrical & Electronic
Xiuxiu Chen, Yanhua Dong, Jianxiang Wen, Hongyu Liu, Weizhu Ji, Xiangping Pan, Yanhua Luo, Tingyun Wang
Summary: We report a novel PbS/Er co-doped silica fiber (PEDF) that exhibits improved spectral properties in the O-band (1260-1360 nm). The PEDF achieves a gain exceeding 15 dB in the range of 1150-1360 nm, with a gain improvement of 6.4-10.9 dB compared to PbS-doped silica fiber in the O-band. The higher concentration of Pb and S in the PEDF core, as well as the more concentrated size distribution of PbS nanoparticles, contribute to its enhanced gain characteristics.
IEEE PHOTONICS JOURNAL
(2023)
Review
Energy & Fuels
Kyle John Williams, Kade Wiseman, Sara Deilami, Graham Town, Foad Taghizadeh
Summary: Light rail vehicles (LRVs) are increasingly in demand to meet the transportation needs of growing urban populations sustainably. This paper reviews existing direct-contact and wireless power transfer (PT) technologies for LRVs and evaluates the feasibility and advantages of inductive power transfer (IPT) and capacitive power transfer (CPT) technologies. It highlights the efficacy of CPT in terms of power transfer capability, safety, and other factors. Limitations and recommendations for future works are also identified.
Article
Optics
Xinghu Fu, Zhexu Huang, Jiahao Zhou, Wendong Zhang, Wa Jin, Guangwei Fu, Feng Liu, Weihong Bi, Yanhua Luo, Gang -Ding Peng
Summary: Based on a self-developed erbium ytterbium co-doped fiber, this paper introduces a sensing system consisting of an amplified spontaneous emission (ASE) source and an optical fiber sensor. The system's spectral test results and ASE source stability are provided. A dual-parameter sensor for temperature and curvature is demonstrated using an in-line cascaded Mach-Zehnder interferometer (MZI), composed of single-mode fiber (SMF) and Nano-Erbium-Ytterbium co-doped fiber (Nano-EYDF). The sensor exhibits different responses to temperature and curvature and can measure them simultaneously using wavelength shifts.
OPTICS AND LASER TECHNOLOGY
(2023)
Article
Optics
Rui Zhang, Wenyu Du, Fei Shao, Siqi Li, Yan Kuai, Zhigang Cao, Feng Xu, Yu Liu, Yanhua Luo, Gang-ding Peng, Kang Xie, Benli Yu, Zhijia Hu
Summary: In this article, highly sensitive voltage, thermal and magnetic field fiber sensors were achieved by doping magnetic nanoparticles into E7 liquid crystals filled into photonic crystal fibers (PLCF). The voltage and temperature sensitivity reached 12.598 nm/V and -3.874 nm/°C, respectively. The minimum voltage response time was 48.2 ms. The phase transition temperature Tc of liquid crystal with magnetic dopant was reduced from 60°C to 46°C. The magnetic field sensor based on magnetic nanoparticles-doped PLCF had a sensitivity of 118.2 pm/mT from 400 to 460 mT.
Article
Engineering, Electrical & Electronic
Mengdi Zhang, Jianxiang Wen, Yan Wu, Ying Cao, Yanhua Luo, Xiaobei Zhang, Fufei Pang, Wei Chen, Tingyun Wang
Summary: In this study, we propose a method to generate third-order orbital angular momentum (OAM) modes with reduced losses by cascading two adiabatic mode selective couplers (MSCs), and amplify the generated mode in an all-fiber system. This system has promising applications in long-distance mode division multiplexing technology.
IEEE PHOTONICS JOURNAL
(2023)
Article
Materials Science, Multidisciplinary
Lingyue Li, Jianxiang Wen, Zirui Chen, Yanhua Luo, Xiaobei Zhang, Fufei Pang, Gang Ding Peng, Tingyun Wang
Summary: Three Er-doped fibers (EDFs) with different concentrations of Bi ions doping were fabricated by atomic layer deposition combined with modified chemical vapor deposition. Co-doping Bi can dramatically weaken the radiation-induced absorption (RIA). The Bi/Er co-doped fiber (BEDF) showed a 56.0% lower RIA at 1300 nm than that of EDF after a 1500 Gy irradiation treatment. The gain characteristics and laser threshold power of BEDF are less varied than those of EDF before and after irradiation, indicating significant performance improvements in radiation resistance.
OPTICAL MATERIALS EXPRESS
(2023)
