Results 41 to 50 of about 6,564 (184)

Experimental demonstration of 25 GHz wideband chaos in symmetric dual port EDFRL [PDF]

, 2017
We study dynamics of chaos in dual port erbium-doped fiber ring laser (EDFRL). The laser consists of two erbium-doped fibers, intracavity filters at 1549.30 nm, isolators, and couplers.
Jain, Ankita, Krishnamurthy, Pradeep Kumar, Landais, Pascal, Mirg, Shubham, Pandey, Akash   +4 more
core   +1 more source

Synergistic Sunlight‐Activated Photodynamic and Near‐Infrared‐Induced Mild Photothermal Therapy for Infected Wound Healing Using Functionalized Nano‐Bi2WO6 Composites

Advanced Science, EarlyView.
This work proposes a multifunctional Bi2WO6:Yb,Er@CuS@CS nanocomposite that integrates photodynamic therapy (PDT), near‐infrared‐triggered photothermal therapy (PTT), and Cu2+ release for infected wound repair. The nanocomposite demonstrates enhanced antibacterial efficacy via combined PDT, PTT, and Cu2+ release, effective immunomodulatory by mild ...
Yihao Sun, Liangrui He, Zhijun Shen, Yuxin Zhang, Yizhang Tang, Xujiang Yu, Jisi Zheng, Moran Huang, Wanwan Li, Lei Wang   +9 more
wiley   +1 more source

Differential mode-gain equalization via femtosecond laser micromachining-induced refractive index tailoring

Light: Advanced Manufacturing
The mode-division multiplexing technique combined with a few-mode erbium-doped fiber amplifier (FM-EDFA) demonstrates significant potential for solving the capacity limitation of standard single-mode fiber (SSMF) transmission systems.
Cong Zhang, Senyu Zhang, Yan Zeng, Yue Wang, Meng Xiang, Di Lin, Songnian Fu, Yuwen Qin   +7 more
doaj   +1 more source

Coupled experiment/simulation approach for the design of radiation-hardened rare-earth doped optical fibers and amplifiers [PDF]

, 2011
We developed an approach to design radiation-hardened rare earth -doped fibers and amplifiers. This methodology combines testing experiments on these devices with particle swarm optimization (PSO) calculations.
Boscaino, Roberto, Boukenter, Aziz, Cadier, Benoît, Cannas, Marco, Girard, Sylvain, Goiffon, Vincent, Laurent, Arnaud, Marcandella, Claude, Mescia, Luciano, Ouerdane, Youcef, Paillet, Philippe, Prudenzano, Francesco, Robin, Thierry, Vivona, Marilena   +13 more
core   +3 more sources

Dual Physiological Barriers Bypassed by a Silk‐Based Supramolecular Protein Delivery Platform for Neuroinflammation Mitigation in Alzheimer's Disease

Advanced Science, EarlyView.
A supramolecular nanocomplex based on phenolic‐modified silk sericin is developed to deliver antioxidant enzymes across the blood–brain barrier and escape lysosomal degradation. This dual‐barrier‐crossing system reduces neuroinflammation and improves cognitive performance in Alzheimer's disease mouse model, offering a promising strategy for protein ...
Doudou Hu, Tiandong Li, Jian He, Yujian Jiang, Yeyuan Wang, Jingchen Sun   +5 more
wiley   +1 more source

Tunable All-Fiber Femtosecond Electro-Optic Optical Frequency Comb Operating at 1.5 μm

Photonics
We propose and demonstrate a tunable femtosecond electro-optic optical frequency comb by shaping a continuous-wave seed laser in an all-fiber configuration. The seed laser, operating at 1.5 μm, is first cascade-phase-modulated and subsequently de-chirped
Aiguo Zhang, Ke Dai, Lin Huang, Liwen Sheng, Zhiming Liu, Yudong Cui, Xiang Hao, Yusheng Zhang   +7 more
doaj   +1 more source

Recent Advances in Photonic Bound States in the Continuum: From Fundamentals to Engineering and Implementation

Laser &Photonics Reviews, EarlyView.
This review summarizes recent progress in meta‐photonics with a focus on bound states in the continuum (BICs) as a powerful platform for light confinement and control. It covers fundamental concepts, design strategies across optical regimes, symmetry breaking for practical quasi‐BICs, tunable and AI‐assisted BIC devices, and emerging applications in ...
Hafiz Saad Khaliq, Hak‐Rin Kim
wiley   +1 more source

Low noise all-fiber amplification of a coherent supercontinuum at 2 \mu m and its limits imposed by polarization noise [PDF]

, 2019
We report the amplification of an all-normal dispersion supercontinuum pulse in a Thulium / Holmium co-doped all-fiber chirped pulse amplification system.
Feurer, Thomas, Heidt, Alexander M., Hodasi, Joanna Modupeh, Klimczak, Mariusz, Rampur, Anupamaa, Ryser, Manuel, Spangenberg, Dirk-Mathys   +6 more
core   +3 more sources

Octave‐Spanning, Deterministic Single Soliton Generation in 4H‐Silicon Carbide‐On‐Insulator Microring Resonators

Laser &Photonics Reviews, EarlyView.
The miniaturization of metrology and precision spectroscopy systems requires robust, turn‐key microcombs with broad bandwidth, low threshold, and high efficiency. Here, high‐Q, dispersion‐engineered microresonators in a high‐confinement nonlinear SiC platform, combined with waveguide‐enabled thermal management and laser cooling, enable deterministic ...
Yi Zheng, Liping Zhou, Chengli Wang, Yanjing Zhao, Ailun Yi, Kresten Yvind, Xin Ou, Minhao Pu   +7 more
wiley   +1 more source

Interference of multi-mode photon echoes generated in spatially separated solid-state atomic ensembles

, 2007
High-visibility interference of photon echoes generated in spatially separated solid-state atomic ensembles is demonstrated. The solid state ensembles were LiNbO$_3$ waveguides doped with Erbium ions absorbing at 1.53 $\mu$m.
C. Simon, H. de Riedmatten, H. Lin, H. Suche, M. Afzelius, M. Arend, M. U. Staudt, N. Gisin, R. Ricken, S. R. Hastings-Simon, T. W. Mossberg, W. Sohler   +11 more
core   +3 more sources