Results 121 to 130 of about 1,023,353 (233)

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

Histopathology, Volume 89, Issue 3, Page 403-425, September 2026.
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

Application of the cross-gain modulation in erbium-doped fiber to increase the effective spectral bandwidth of an interrogator

Научно-технический вестник информационных технологий, механики и оптики
This study investigates the impact of Cross-Gain Modulation (XGM) in erbium-doped fiber on the effective spectral bandwidth of a fiber-optic sensor interrogation system employing Fiber Bragg Gratings (FBGs) and a Distributed Feedback (DFB) laser diode ...
V. N. Nazarenko, V. A. Iudin, S. A. Volkovskiy, A. S. Aleynik   +3 more
doaj   +1 more source

Raman amplification and pulsed lasing in cladding-pumped germanosilicate fiber

We report for the first time Raman amplification in a cladding-pumped fiber. The double-clad germanosilicate fiber was pumped by a Q-switched Er-Yb co-doped fiber laser at 1570 nm. The power conversion efficiency was up to 36%, with a slope of 64%
Selvas, R., Hanna, D.C., Nilsson, J., Grudinin, A.B., Sahu, J.K., Jang, J.N.   +5 more
core   +1 more source

Quenching dynamics in highly doped erbium fiber core-pumping, amplifier configuration

AIP Advances
This study examines the influence of quenching dynamics on the efficiency of erbium-doped fiber amplifiers (EDFAs) with high erbium-ion (E3+-ions) doping concentrations, comparing pulsed and continuous wave core-pumping methods.
Pablo G. Rojas Hernandez, Shankar Pidishety, Johan Nilsson   +2 more
doaj   +1 more source

Two-wavelength, dual regime Q-switched erbium-doped fiber laser based on a microfiber loop coated with gold nanostars as the saturable absorber

Results in Optics
We report a two-wavelength, dual-regime Q-switched erbium-doped fiber laser employing a microfiber loop coated with gold nanostars as the saturable absorber.
A. Martinez-Rios, G. Anzueto-Sanchez, J.L. Pichardo-Molina, L.F. Enriquez-Gomez, R.E. Nuñez-Gomez, L.A. Rodriguez-Morales, O. Pottiez, A. Kir’yanov   +7 more
doaj   +1 more source

Erbium-doped and Raman fiber amplifiers

Comptes Rendus. Physique, 2003
This paper provides keys to understand why erbium-doped fiber amplifiers (EDFA) have revolutionized signal transmission techniques and how they can complement with Raman amplification in the next generation of telecommunications systems. The basic physics of EDFAs is first reviewed, followed by a description of requirements for both terrestrial and ...
openaire   +1 more source

First demonstration of multimode amplifier for spatial division multiplexed transmission systems

We present the first systematic study of a two-moded erbium-doped fiber amplifier, and identified its performance trends.
Jung, Y., Giles, I., Li, Z., Richardson, D.J., Poletti, F., Grüner-Nielsen, L., Sahu, J.K., Alam, S.-U., Dhar, A., Giles, D.   +9 more
core   +1 more source

Pump wavelength dependence of bismuth doped fibre laser

, 2008
We characterize Bi doped fibres in spectroscopic perspective under 915, 976 and 1090 nm pumping. The performance of Bi doped fibre lasers under different pumping bands is correlated to the spectroscopic characteristics.
Yoo, Seongwoo, Quimby, Richard S., Kalita, Mridu P., Sahu, Jayanta   +3 more
core   +1 more source

Fe₃O₄ nanoparticle-enabled mode-locking in an erbium-doped fiber laser. [PDF]

Front Optoelectron, 2020
Li X, Peng J, Liu R, Liu J, Feng T, Qyyum A, Gao C, Xue M, Zhang J.   +8 more
europepmc   +1 more source

Amplifying Orbital Angular Momentum Modes in Ring-Core Erbium-Doped Fiber. [PDF]

Research (Wash D C), 2020
Liu J, Chen S, Wang H, Zheng S, Zhu L, Wang A, Wang L, Du C, Wang J.   +8 more
europepmc   +1 more source