Results 51 to 60 of about 2,955 (186)

Single mode EDF fiber laser using an ultra-narrow bandwidth tunable optical filter [PDF]

, 2015
Single longitudinal mode (SLM) erbium-doped fiber (EDF) laser operation using a commercialized ultra-narrow bandwidth optical filter has been studied. A two-meter long EDF with an absorption coefficient of 24 dBm-1 at the pump wavelength is used as gain ...
Razak, Nor Farhah ; University Technology of Malaysia
core   +2 more sources

Switchable Dual-Wavelength Thulium-Doped Fiber Laser Based on Polarization-Maintaining Fiber Bragg Grating and Compound Cavity Filter

Photonics
This paper presents experimental evidence regarding a novel switchable dual-wavelength thulium-doped fiber laser (TDFL). Wavelength switching is achieved by combining a polarization-maintaining fiber Bragg grating (PM-FBG) with a polarization controller (
Xiangdong Wang, Fengping Yan, Hao Guo, Wei Wang, Dandan Yang, Pengfei Wang, Ting Li, Chenhao Yu, Kazuo Kumamoto, Yuping Suo   +9 more
doaj   +1 more source

Tunable and Switchable Dual-Wavelength SLM Narrow-Linewidth Fiber Laser with a PMFBG-FP Filter Cascaded by Multi-Ring Cavity

Photonics, 2022
A single longitudinal mode (SLM) dual-wavelength switchable erbium-doped fiber laser (DW-EDFL) based on polarization-maintaining fiber Bragg grating Fabry–Perot cavity (PMFBG-FP) cascaded multiple sub-ring cavities (MSCs) is proposed.
Mingquan Gao, Bin Yin, Yanzhi Lv, Guofeng Sang, Benran Hou, Haisu Li, Muguang Wang, Songhua Wu   +7 more
doaj   +1 more source

Optically Bound Rapid Plasmonic Nanorod Dimers: Anisotropic Dynamics Driven by Light‐Fluidic Cooperation

Laser &Photonics Reviews, EarlyView.
Optically confined gold nanorods exhibit cooperative light‐driven dynamics, forming mobile end‐to‐end dimers with orientation‐dependent propulsion. Using structured laser traps and an opto‐thermo‐hydrodynamic model, we uncover how optical binding, polarization‐induced torque, and near‐surface hydrodynamics govern their motion.
José A. Rodrigo, Tatiana Alieva
wiley   +1 more source

Optical Skyrmions with Tunable or Reconfigurable Topology Using Spin‐Decoupled Metaoptics

Laser &Photonics Reviews, EarlyView.
The work introduces advanced optical elements capable of generating and dynamically reconfiguring complex light patterns known as optical skyrmions. By precisely shaping light polarization at the nanoscale, a single engineered metasurface can generate and manipulate robust and tunable polarization textures in an efficient and scalable way.
Andrea Vogliardi, Daniele Bonaldo, Simone Dal Zilio, Vittorio Apolloni, Filippo Romanato, Gianluca Ruffato   +5 more
wiley   +1 more source

Single longitudinal mode fiber ring laser [PDF]

, 2018
In this work, a dual-wavelength fiber ring laser working on the SLM regime is proposed and experimentally verified. A proof-of-concept device has been tested employing high precision small-sized SLM fiber lasers to complement the feedback produced by a ...
Ruiz Lombera, Rubén, López Higuera, José Miguel, Jesus Mirapeix, Jose-Miguel Lopez-Higuera, Mirapeix Serrano, Jesús María, Quintela Incera, María Ángeles, Luis Rodriguez-Cobo, Ruben Ruiz-Lombera, Rodríguez Cobo, Luis, M. Angeles Quintela   +9 more
core   +1 more source

Increased expression of aromatase after focal cerebral ischemia: Relevance to neuroprotection and functional recovery

Neuroprotection, EarlyView.
Abstract Aim Aromatase is the key enzyme in the biosynthesis of 17β‐estradiol, the most potent estrogen, which has pleiotropic neuroprotective properties. Aromatase levels increase in the brain after stroke, and its gene variants increase susceptibility to stroke. This study aims to determine whether aromatase overexpression improves stroke outcome and
Lindsay Gallagher, Anna F. Dominiczak, Luis M. Garcia‐Segura, Nobuhiro Harada, J. B. Hutchison, James M. Mullin, Delyth Graham, Peter O'Shaughnessy, Hilary Victoria O. Carswell   +8 more
wiley   +1 more source

Multiwavelength Single-Longitudinal-Mode Brillouin–Erbium Fiber Laser Sensor for Temperature Measurements With Ultrahigh Resolution

IEEE Photonics Journal, 2015
A multiwavelength single-longitudinal-mode (SLM) Brillouin-erbium fiber laser sensor with ultrahigh resolution is proposed and investigated experimentally. The one short common cavity with 50 m of single mode fiber (SMF) as the fiber under test and 100 m
Yi Liu, Mingjiang Zhang, Peng Wang, Lan Li, Yuncai Wang, Xiaoyi Bao   +5 more
doaj   +1 more source

A Single-Mode Erbium Fiber Laser With Flat Power Output and Wide Wavelength Tunability

IEEE Photonics Journal, 2020
In this research, we present and study an erbium fiber laser with triple-fiber-ring (TFR) scheme for continuous-wave (CW) wavelength-selection. The designed TFR not only can achieve single-longitudinal-mode (SLM) oscillation, but also can spread the ...
Chien-Hung Yeh, Wei-Yao You, Jhao-Ren Chen, Wen-Piao Lin, Chi-Wai Chow, Jing-Heng Chen   +5 more
doaj   +1 more source

Biodegradable Dual‐Material 4D‐Printed Scaffolds With Tunable PLA/PEG Ratios for Mandibular Bone Regeneration

Polymer Engineering &Science, EarlyView.
Schematic representation of the fabrication and application concept of biodegradable dual‐material 4D‐printed PLA/PEG scaffolds for mandibular bone regeneration. ABSTRACT In this study, biodegradable dual‐material 4D‐printed scaffolds with tunable poly(lactic acid)/poly(ethylene glycol) (PLA/PEG) ratios were designed, fabricated, and systematically ...
Meltem Eryildiz
wiley   +1 more source