Results 61 to 70 of about 3,107 (187)

Experimental Measurement of Absorption Coefficients for Effective Erbium-Doping Concentration to Optimize Few-Mode Erbium-Doped Fiber Amplifiers with Low Differential Mode Gain

Photonics, 2021
According to the analytical expression for modal gain of few-mode erbium-doped fiber amplifiers (FM-EDFAs), we propose a method of measuring the absorption loss coefficients of few-mode signals in few-mode erbium-doped fibers (FM-EDFs) by extrapolating ...
Yan Xu, Baojian Wu, Xinrui Jiang, Haomiao Guo, Feng Wen   +4 more
doaj   +1 more source

Optical‐to‐Microcomb Stability Transfer for Ultrastable Timing and Microwave/Millimeter‐Wave Generation

Laser &Photonics Reviews, EarlyView.
This work demonstrates a high‐fidelity stability transfer from an optical reference to a high‐repetition‐rate microcomb using a mode‐locked laser bridge. By employing electro‐optic sampling timing detection, femtosecond‐level synchronization and 10−18‐level fractional frequency stability are achieved.
Changmin Ahn, Junyong Choi, Daewon Suk, Hansuek Lee, Jungwon Kim   +4 more
wiley   +1 more source

Epitaxial Integration of III–V Membrane Photodetectors With Lateral p–i–n Junctions on the Silicon‐On‐Insulator Waveguide Platform

Laser &Photonics Reviews, EarlyView.
Epitaxial growth forms III–V membranes directly atop the silicon waveguide layer on SOI, while in‐plane in situ doping defines lateral p–i–n InP/InGaAs junctions in a single growth step. The membrane photodetectors achieve 50 Gb/s NRZ‐OOK operation.
Zhao Yan, Yifu Chen, Martin Ebert, Ka Ming Wong, Wenjie Wang, Tim Grieb, Florian F. Krause, Andreas Rosenauer, Graham T. Reed, David J. Thomson, Qiang Li   +10 more
wiley   +1 more source

Tapered-EDF-Based Mach–Zehnder Interferometer for Dual-Wavelength Fiber Laser

IEEE Photonics Journal, 2014
An all-fiber comb filter using a tapered-erbium-doped fiber in a Mach-Zehnder interferometer structure is presented. The free spectral range, extinction ratio, bandwidth, and interference pattern of the comb filter can be shaped by controlling the taper ...
M. I. Md Ali, S. A. Ibrahim, M. H. Abu Bakar, A. S. M. Noor, S. B. Ahmad Anas, A. K. Zamzuri, M. A. Mahdi   +6 more
doaj   +1 more source

The 2025 ATS/ERS update of the international multidisciplinary classification of the interstitial pneumonias: implications for the pathologist

Histopathology, EarlyView.
This review highlights changes relevant to pathologists in the updated multidisciplinary classification of interstitial pneumonias. Changes include expansion beyond idiopathic disease, subclassification as interstitial (fibrotic vs non‐fibrotic) and alveolar filling disorders, expansion to include additional patterns (e.g.
Andrew G Nicholson, Wendy A. Cooper, Aurelie Fabre, William Travis, Lida P. Hariri, Ayodeji Adegunsoye, Sara Piciucchi, Christopher J Ryerson   +7 more
wiley   +1 more source

Root surface biomodification in periodontal therapy: Biological rationale and clinical applications

Periodontology 2000, EarlyView.
Abstract Regenerative periodontal therapy aims to form new cementum, periodontal ligament, and alveolar bone, all sealed by gingival tissue. The root surface acts as the wound margin during this regeneration process. Root surface biomodification (root conditioning/root decontamination), therefore, seems instrumental in promoting surface decontamination
Muhammad H. A. Saleh, Debora R. Dias, Andrea Ravida, Hom‐Lay Wang   +3 more
wiley   +1 more source

Engineered surface strategies to manage dental implant‐related infections

Periodontology 2000, EarlyView.
Abstract When exposed to the oral environment, dental implants, like natural surfaces, become substrates for microbial adhesion and accumulation, often leading to implant‐related infections—one of the main causes of implant failure. These failures impose significant costs on patients, clinicians, and healthcare systems.
João Gabriel S. Souza, Bruna E. Nagay, Rodrigo Martins, Martinna Bertolini, Jamil A. Shibli, Conrado Aparicio, Magda Feres, Valentim A. R. Barão   +7 more
wiley   +1 more source

Wavelength switchable and stable single-longitudinal-mode erbium-doped fiber laser based on Mach–Zehnder interferometer and tunable filter

International Journal of Optomechatronics, 2018
An erbium-doped fiber laser with all-fiber Mach–Zehnder interferometer (MZI) and tunable filter was proposed and experimentally demonstrated. In the designed fiber laser, 6 m C-band erbium-doped fiber was selected as a gain medium; the MZI comprised two ...
Wei He, Lianqing Zhu, Mingli Dong, Fei Luo   +3 more
doaj   +1 more source

APPLICATION OF JUDD-OFELT THEORY UPON CHLOFLUOROPHOSPHATE GLASS DOPED WITH ERBIUM

Journal of Fundamental and Applied Sciences, 2015
A series of erbium doped glasses chlorofluorophosphates were prepared and characterized. The absorption spectra were analyzed to determine the Judd-Ofelt parameters. The optical performance of these doped glasses suggesting the relevance of these glasses
A. Babai, K. E. Aiadi, O. Bentouila, F. Rehoma, M. Poulain   +4 more
doaj   +1 more source

Emerging locally delivered antimicrobial and immunomodulatory approaches for the prevention/treatment of peri‐implant diseases

Periodontology 2000, EarlyView.
Abstract Peri‐implant diseases are dysbiosis‐mediated inflammatory disorders that occur in susceptible hosts. Antimicrobials and immunomodulatory agents therefore might be pertinent as adjunctive measures in the treatment of such disorders. The aim of this narrative review was to examine the existing evidence and assess the effectiveness of emerging ...
Alberto Monje, Ettore Amerio, Irene Mallor, Conrado Aparicio   +3 more
wiley   +1 more source