Article
Physics, Multidisciplinary
Xinyu Yang, Jian Yang, Qibo Xu, Hua Yang
Summary: We have numerically demonstrated the generation of super-flat coherent mid-infrared supercontinuum in all-normal dispersion As39Se61 chalcogenide photonic crystal fiber (PCF). The obtained PCF with flat-ANDi and high nonlinearities by optimizing the structural parameters of the fiber. The super-flat coherent mid-infrared supercontinuum extended from 2.17 to 7.47 μm under 3 dB spectral flatness when pumping laser pulses with a 50 fs pulse width and 6 kW peak power at 3.35 μm. Such coherent mid-infrared supercontinuum is highly demanded in optical coherence tomography, biological imaging, and frequency metrology.
Article
Optics
Jacek Swiderski, Pawel Grzes
Summary: High-power supercontinuum generation was demonstrated in step-index fluoroindate (InF3) and chalcogenide (As2S3) fibers, with output average power of 2.95 W in InF3 fiber and 440 mW in As2S3 fiber extending up to 4.17 μm. By cascading the system, the spectrum was extended up to 5.58 μm. The flat spectrum and high-output power indicate the potential of these sources for various applications.
OPTICS AND LASER TECHNOLOGY
(2021)
Article
Instruments & Instrumentation
Lingling Yang, Bin Yan, Ruwei Zhao, Duanduan Wu, Tianxiang Xu, Peilong Yang, Qiuhua Nie, Shixun Dai
Summary: This study explores and demonstrates the fusion splicing between single-mode silica and ZBLAN fiber with ultra-high coupling efficiency, high robustness, and low thermal instability using asymmetric fiber splicing technology. By achieving a high-quality fusion-splicing point with less than 0.1 dB splicing loss, it shows stability and robustness for practical applications. This work establishes a solid foundation for further development of high-quality all-fiber structured MIR-SC.
INFRARED PHYSICS & TECHNOLOGY
(2021)
Article
Engineering, Electrical & Electronic
Yating Tang, Xing Luo, Fanlong Dong, Jiachen Wang, Linpeng Yu, Peiguang Yan, Jinzhang Wang, Zhijian Zheng, Qitao Lue, Chunyu Guo, Shuangchen Ruan
Summary: This study demonstrates all-fiber mid-infrared enhanced supercontinuum generation in an Erbium-doped ZBLAN fiber amplifier. A 2 μm low repetition rate noise-like pulse mode-locked fiber laser is used as the pulse seed, which generates a supercontinuum covering the range from approximately 2 μm to approximately 3.8 μm in an InF3 fiber. The supercontinuum is then injected into the Erbium-doped ZBLAN fiber amplifier for mid-infrared enhancement and power boosting beyond 2.7 μm.
JOURNAL OF LIGHTWAVE TECHNOLOGY
(2023)
Article
Crystallography
Yu Li, Meisong Liao, Jianjun Han, Jie Luo
Summary: This study demonstrates the fabrication process and coherent supercontinuum generation of fluorotellurite step-index fibers. By using specific fluorotellurite glass pairs and advanced fabrication techniques, coherent continuum spanning from 1200 nm to 2400 nm was successfully generated under 1560 nm pumping.
Article
Engineering, Electrical & Electronic
Abdelkader Medjouri, Djamel Abed
Summary: This study presents the design of an all-solid Photonic Crystal Fiber (PCF) to achieve broadband, ultraflat-top, and coherent supercontinuum generation in the mid-infrared spectral region using sub-nanojoule laser pulses. By incorporating environmentally friendly chalcogenide glasses, the all-solid PCF demonstrates high Kerr nonlinearity and all-normal dispersion profile, resulting in a bright, broadband, and perfectly coherent supercontinuum spectrum. The proposed PCF-based laser source shows great potential for various mid-infrared applications, such as high-resolution imaging of biological tissues and monitoring of greenhouse gases.
OPTICAL AND QUANTUM ELECTRONICS
(2021)
Review
Chemistry, Multidisciplinary
Jacek Swiderski
Summary: This paper briefly reviews the current state-of-the-art SC sources based on fluoroindate fibers and explores the advances in high-power continuum generation using different pump schemes.
APPLIED SCIENCES-BASEL
(2022)
Article
Optics
Irina Zhluktova, Andrei D. Zverev, Serafima A. Filatova, Vladimir A. Kamynin, Alexej A. Sysoliatin, Vladimir B. Tsvetkov
Summary: Octave-spanning supercontinuum conversion has been investigated in three different rare-earth doped fiber amplifiers. The erbium amplifier achieved an output power of 445 mW with a spectral width of 1250 nm. The thulium amplifier obtained an average output power of 390 mW and a spectral width of 569 nm. Additionally, the holmium amplifier produced an average output power of 724 mW with a spectral width of 450 nm. In all cases, the output pulse envelope did not exceed 0.72 ns.
Article
Engineering, Electrical & Electronic
Tingting Chen, Jin Li, Jinliang Yuan, Xin Zhou, Yu Ding, Lixin Wang, Jinhai Zou, Qingyuan Li, Qiujun Ruan, Hang Wang, Jinfen Hong, Yikun Bu, Zhengqian Luo
Summary: This report presents the use of highly resistant dielectric-coated fiber mirrors in watt-level mid-IR Dy3+- and Er3+-doped all-fiber lasers. The specially designed fiber pigtail mirror allows for efficient dichroic operation and exhibits high damage density, making it suitable for high-power mid-IR laser operation. A Ta2O5 monolayer protective film is used to mitigate fiber tip photodegradation. The compact all-fiber mid-IR cavities are formed by connecting the Dy3+- and Er3+-doped ZBLAN gain fibers with dielectric-coated fiber mirrors. The achieved maximum output powers and slope efficiencies are reported for both Dy3+ and Er3+ lasers.
JOURNAL OF LIGHTWAVE TECHNOLOGY
(2023)
Article
Engineering, Electrical & Electronic
Xiaohui Guo, Zhixu Jia, Yadong Jiao, Zhenrui Li, Chanfei Yao, Minglie Hu, Yasutake Ohishi, Weiping Qin, Guanshi Qin
Summary: This letter demonstrates a 25.8 W all-fiber mid-infrared supercontinuum light source based on fluorotellurite fibers. The all-solid fluorotellurite fibers are fabricated using a rod-in-tube method and connected to a high power SC fiber laser. The experimental results show that a 25.8 W SC light source with a spectral range from 0.93 to 3.99 μm can be achieved at a pump power of approximately 42.6 W.
IEEE PHOTONICS TECHNOLOGY LETTERS
(2022)
Article
Engineering, Electrical & Electronic
Xing Luo, Yating Tang, Fanlong Dong, Jiachen Wang, Linpeng Yu, Peiguang Yan, Jinzhang Wang, Zhijian Zheng, Qitao Lue, Chunyu Guo, Shuangchen Ruan
Summary: This study demonstrates the generation of broadband mid-infrared supercontinuum at room temperature using an ultralow repetition rate noise-like pulse mode-locked fiber laser. By inserting a standard single mode fiber and a dispersion compensation fiber into the long laser cavity of a Tm-doped fiber laser, mode-locked noise-like pulses with a repetition rate of approximately 190 kHz are obtained. The amplified noise-like pulse is then used to pump a highly nonlinear indium fluoride fiber, resulting in a flat mid-infrared supercontinuum with a coverage range from approximately 1500 nm to 4100 nm. The all-fiber mid-infrared supercontinuum laser source has a simple architecture and low cost. The study highlights the advantages of ultra-low repetition rate noise-like pulses in mid-infrared supercontinuum generation.
JOURNAL OF LIGHTWAVE TECHNOLOGY
(2022)
Review
Optics
Yingying Wang, Shixun Dai
Summary: Chalcogenide (ChG) glasses have wide transparency window and high optical nonlinearity, making them excellent candidates for mid-infrared (MIR) supercontinuum (SC) generation. Significant progress has been made in MIR SC generation based on ChG fibers, particularly in spectral extension and output power improvement.
Article
Physics, Multidisciplinary
Kun Xiao, Yudong Ye, Rui Min
Summary: In this study, broadband and coherent supercontinuum spectra were generated in the mid-infrared region using dispersion-engineered all-chalcogenide microstructured fibers (MOFs). The fibers exhibited a broad and flat all-normal-dispersion characteristic, making them suitable for various applications.
FRONTIERS IN PHYSICS
(2022)
Article
Optics
B. Kibler, A. Lemiere, J. -T. Gomes, D. Gaponov, L. Lavoute, F. Desevedavy, F. Smektala
Summary: The experimental demonstration shows that supercontinuum generation with a bandwidth of 140 THz is achievable in a 10 cm-long all-normal dispersion step-index tellurite fiber pumped by a turn-key femtosecond fiber laser. By controlling soliton self-frequency shift and quasi-linear chirp, pulse duration can be compressed from 85 fs to 12 fs during nonlinear propagation.
OPTICS COMMUNICATIONS
(2021)
Article
Physics, Multidisciplinary
Shuo Liu, Xin Han, Jiaqi Lv, Yanhui Feng, Yuanqin Xia, Zhenxu Bai
Summary: Numerical simulations show that the compression of spectrum by dispersion oscillating fiber effectively controls the generation of rare optical rogue waves. Comparison between uniform fiber and DOF reveals that the spectral bandwidth is compressed from 5,800 nm to 2,300 nm, suppressing high peak power rogue waves. The best suppression effect is achieved when the oscillation amplitude is 300 ps(2)/km, the oscillation period is 0.5 cm, and the initial phase is 0.
FRONTIERS IN PHYSICS
(2021)
Article
Materials Science, Ceramics
I. C. Pinto, R. F. Falci, V. A. G. Rivera, T. Guerineau, S. LaRochelle, Y. Messaddeq
Summary: This paper provides a better understanding of the mechanism of interactions between Ce3+ and Er3+ ions in a tungsten-tellurite glass. Ce4+ and Ce3+ ions were obtained in an Er3+-doped tellurite glass by adding different concentrations of CeO2. Under a 980 nm excitation, a series of interactions between Ce3+<-> Er3+ were observed, leading to a subtle increase in the Er3+ emission intensity in the near-infrared region for 0.1 mol% of CeO2, followed by a decrease in the emission intensity for higher CeO2 concentration without any significant increase in the bandwidth. The visible upconversion emission intensity also decreased with the addition of CeO2. These interactions are achieved through coupling and energy transfer.
CERAMICS INTERNATIONAL
(2023)
Article
Engineering, Electrical & Electronic
Ori Henderson-Sapir, Nathaniel Bawden, Antreas Theodosiou, Matthew R. Majewski, Kyriacos Kalli, Stuart D. Jackson, David J. Ottaway
Summary: A mode-locked, dual-wavelength pumped 3.5 μm fiber laser using frequency shifted feedback and an acoustooptic modulator is presented. The laser produced pulses of 3.8 ps with an energy of 9.7 nJ at a repetition rate of 37.75 MHz, resulting in a peak power of 2.55 kW. Additionally, an electronically wavelength swept, mid-IR interrogator was developed for characterizing a mid-IR fiber Bragg grating.
JOURNAL OF LIGHTWAVE TECHNOLOGY
(2023)
Article
Chemistry, Physical
Gabriel Toshiaki Tayama, Silvia Helena Santagneli, Marcos de Oliveira Jr, Younes Messaddeq
Summary: In this paper, we synthesized and characterized transparent and photopolymerizable aluminum-phosphate-silicate hybrid materials. We investigated the structural evolution of the hybrid materials with varying silicon concentration using SEM, phase-contrast AFM, and solid-state NMR techniques. The structure of the materials follows the build-up principle using aluminum phosphate species and alkoxysilane chains as building blocks. The photopolymerization mechanism results in structural heterogeneities in the range of 5 nm.
JOURNAL OF PHYSICAL CHEMISTRY C
(2023)
Article
Optics
Max Whiteman, Stuart D. Jackson
Summary: In this study, we reviewed various theoretical relations for quantifying light scattering and applied them to calculate scattering in transparent glass ceramics (TGCs) composed of nanocrystals within a glass matrix. Material dispersion was included to obtain a realistic depiction of scattering in these materials. The results showed that the different forms of scattering under the Rayleigh-Debye-Gans approximation varied significantly across the visible and near-IR range, and the inclusion of material dispersion changed the trends in calculated scattering cross section.
Article
Chemistry, Physical
Jeferson A. Dias, Silvia H. Santagneli, Ana C. M. Rodrigues, Naiza V. Boas, Younes Messaddeq
Summary: This paper investigates the effects of crystallization advance on the material structure and electrical properties of lithium-ion Na+ super ionic conductor (NASICON) glass ceramics. The study crystallizes glasses with different compositions and monitors the glass-to-crystal transformation using various techniques. The results show that the addition of scandium improves the stability against crystallization and induces lattice expansion. Crystallization leads to significant structural changes, while the percolation of crystals greatly enhances conductivity. Scandium also reduces the sizes of crystals and promotes larger grain sizes for better conductivity in fully crystallized glass ceramics.
JOURNAL OF PHYSICAL CHEMISTRY C
(2023)
Article
Polymer Science
Gabriel Toshiaki Tayama, Sandra Helena Messaddeq, Silvia Helena Santagneli, Younes Messaddeq
Summary: This study investigated the photopolymerization of aluminum-phosphate-silicate resins obtained from the hybrid sol-gel route for Vat photopolymerization (VPP) process. The critical energy (E (c)) and penetration depth (D (p)) were determined as a function of laser power and MPTMS (silicate) concentration. The kinetics of photopolymerization were explored using steady- and unsteady-state photo-DSC experiments. The experimental results supported the validity of the E (c) proportional to k ( t ) (1/2)/k (p) and D (p) proportional to epsilon relationship for predicting critical energy and penetration values for arbitrary resins.
Article
Optics
Yan Ososkov, Jinho Lee, Toney T. Fernandez, Alex Fuerbach, Stuart D. Jackson
Summary: We demonstrate the high-efficiency operation of a dysprosium-doped fluoroindate glass fiber laser at 3.05 μm, which is pumped at 2.83 μm using an erbium-doped fluorozirconate glass fiber laser. The free-running laser achieves a slope efficiency of 82%, close to the Stokes efficiency limit. We achieve narrow-linewidth wavelength stabilization at 3.2 μm by utilizing a high-reflectivity fiber Bragg grating inscribed in the dysprosium-doped fluoroindate glass. These results open up possibilities for power-scaling of mid-infrared fiber lasers using fluoroindate glass.
Article
Materials Science, Multidisciplinary
Jinho Lee, Yan Ososkov, Solenn Cozic, Aymeric Pastre, Remy Bernard, Stuart D. Jackson
Summary: We present a new design for active fluoride glass fibres that uses a metal coating instead of a polymer coating. A chemically fabricated 2-μm-thick silver layer is applied to the periphery of the fiber doped with Dy3+ ions, with coating lengths of up to 20 cm achieved. Using a sensitive fiber Mach-Zenhder interferometer (MZI) with a stabilized He-Ne laser, we accurately measure the temperature rise in the fiber core. Our results demonstrate that the metal coating can reduce the fiber core temperature by up to 22% for low power levels. This work lays the foundation for critical applications of active fluoride fibers where temperature reduction and stabilization are essential.
OPTICAL MATERIALS EXPRESS
(2023)
Article
Nanoscience & Nanotechnology
Victor Fuertes, Nicolas Gregoire, Philippe Labranche, Natalie Hamada, Brice Bellanger, Yannick Ledemi, Sophie LaRochelle, Younes Messaddeq
Summary: Engineering silica optical fibers by nanoparticle doping is a promising technology that allows the introduction of new functionalities and extends their applicable fields. This study demonstrates the possibility of doping optical fibers with tetragonal cubic-shaped and monoclinic rod-shaped YPO4 nanocrystals, in terms of shape, composition, and structure. The findings also open up new avenues to study shape-dependent properties of rare-earth orthophosphate (REPO4) nanostructures in optical fibers, which will have a significant impact in various applications.
ACS APPLIED NANO MATERIALS
(2023)
Article
Nanoscience & Nanotechnology
Victor Fuertes, Adolfo del Campo, Nicolas Gregoire, Philippe Labranche, Jose Francisco Fernandez, Younes Messaddeq
Summary: An in-depth study of nanoparticle-doped optical fibers using confocal Raman microscopy, Rayleigh light-scattering microscopy, and scanning electron microscopy (SEM) reveals the crystallization structures and size-dependent Raman shifts of YPO4 nanocrystals in the fiber core. The study also evaluates the Raman properties of the nanocrystals at different temperatures, observing linear phonon softening behavior. These findings provide new insights into the characteristics of nanoparticle-doped optical fibers and open up possibilities for further research in this field.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Engineering, Electrical & Electronic
Magali Ozon, Antoine Frasie, Gabriel Gagnon-Turcotte, Mourad Roudjane, Laurent Bouyer, Ghyslain Gagnon, Younes Messaddeq, Benoit Gosselin
Summary: This work presents a system for measuring and analyzing motion using a portable electronic device and a flexible fiber sensor. The system includes a new sensor interface circuit that measures the impedance of the fiber, which is composed of multi-walled carbon nanotubes and polydimethylsiloxane elastomer. The measured data is transmitted to a laptop via Bluetooth, allowing for easy integration into a smart garment. The system was assessed on a robotic arm and through various exercises on 5 participants, showing good measurement performance and accuracy.
IEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS I-REGULAR PAPERS
(2023)
Article
Chemistry, Physical
Brice Bellanger, Wagner Correr, Emmanuel Veron, Cecile Genevois, Yannick Ledemi, Mathieu Allix, Younes Messaddeq
Summary: The influence of the structural environment of lanthanide ions on the co-doping Faraday effect in fluorophosphate glasses and glass ceramics is studied. The crystallization process and the composition law of TbOF glass ceramics are investigated, and the Verdet constants of co-doped glass ceramics are compared to those of parent glasses. It is found that the structural organization around the lanthanide cation site increases the co-doping influence on the Faraday Effect by optimizing the superexchange interaction.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Multidisciplinary Sciences
V. Fuertes, N. Gregoire, P. Labranche, S. Gagnon, S. LaRochelle, Y. Messaddeq
Summary: Rayleigh scattering enhanced nanoparticle-doped optical fibers, although restricted in composition and experimental conditions, show potential for distributed sensing applications. In this study, YPO4 nanocrystals are used to develop tunable optical fibers with enhanced scattering and optical performance. The fiber drawing process plays a crucial role in determining the nanocrystal features, and fibers drawn below 1950°C exhibit homogeneous characteristics and performance. The fabricated fibers demonstrate tunable backscattering and optical losses, enabling sensing lengths from 0.3 m to over 58 m. This work suggests a promising future for YPO4 nanocrystals in distributed sensing and opens the door to the incorporation of other REPO4 nanocrystals.
SCIENTIFIC REPORTS
(2023)
Article
Chemistry, Multidisciplinary
Antsar R. Hlil, Jean-Sebastien Boisvert, Hatem M. Titi, Yalina Garcia-Puente, Wagner Correr, Sebastien Loranger, Jyothis Thomas, Ali Riaz, Younes Messaddeq, Raman Kashyap
Summary: This study thoroughly investigated the impact of femtosecond (fs) laser on PDMS-based composites, revealing the influence of photoinitiators on mechanical properties and refractive index change of PDMS. It showed a significant improvement in optical performance levels of PDMS composites, providing guidance for future research in photonics and polymer chemistry.
Article
Chemistry, Multidisciplinary
Antsar R. Hlil, Jean-Sebastien Boisvert, Hatem M. Titi, Yalina Garcia-Puente, Wagner Correr, Sebastien Loranger, Jyothis Thomas, Ali Riaz, Younes Messaddeq, Raman Kashyap
Summary: This study characterizes the effect of fs-laser writing on various PDMS-based composites, demonstrating the influence of photoinitiators on the mechanical and optical properties of PDMS. The findings provide insights for selecting photoinitiators for specific applications in photonics and polymer chemistry.