Results 131 to 140 of about 1,780,396 (352)
Optics Express, 2015 In this paper we present a simple model to predict the behavior of the transversal mode instability threshold when different parameters of a fiber amplifier system are changed.
C. Jauregui +4 more
semanticscholar +1 more source
Review of Thermally Activated Twisted Coiled Polymer Actuators: A Materials Science Perspective
Advanced Functional Materials, EarlyView.Thermally activated twisted and coiled polymer actuators (TCPAs) combine lightweight design, large deformation, and scalable fabrication for soft robotic and wearable applications. This review connects polymer structure, processing history, helix geometry, and thermomechanical characterization to actuator performance, highlighting current challenges in
Nadja Schenk +3 more
wiley +1 more source
110 W All Fiber Actively Q-Switched Thulium-Doped Fiber Laser
IEEE Photonics Journal, 2015 We report a 100-W-level, repetition rate and pulsewidth tunable, all-fiber, thulium-doped master oscillator power amplifier system. The master oscillator was actively Q-switched by a fiber-coupled acousto-optic modulator.
De-qin Ouyang +6 more
doaj +1 more source
High-power fiber laser amplifiers based on a new pump-coupling technology
, 2011 By constructing the coupled-mode equations, the mode-coupling characteristics between the passive and active cores within a kind of composite structural fiber (CSF) are studied theoretically.
ZhaoBaoyin +5 more
core
Advanced Healthcare Materials, EarlyView.Chamber‐specific decellularized extracellular matrices (ECMs) were developed, preserving native proteomic profiles of ventricular and atrial myocardium. These innate biochemical cues differentially modulate cardiomyocyte subtypes to drive engineered heart tissue development and function, highlighting the importance of incorporating regional ECM cues in
Dong Gyu Hwang +7 more
wiley +1 more source
Optimization of ultrafast Yb-doped fiber amplifiers to achieve high-quality compressed pulses
EPJ Web of Conferences, 2013 We both numerically and experimentally study the performance of nonlinear Yb-doped fiber amplifiers, and demonstrate that there exists an optimum negative prechirp that produces the best-quality compressed pulses.
Chang Guoqing +4 more
doaj +1 more source
Advanced Healthcare Materials, EarlyView.A long‐lived, five‐cell‐type human neurovascular (PENTA) model recreates vascular disorganization and incomplete repair after traumatic brain injury (TBI). By integrating endothelial, glial, neuronal, and immune components within a 3D scaffold, the platform enables time‐resolved analysis of neurovascular remodeling and provides a human‐relevant system ...
Daniel S. Hinrichsen +6 more
wiley +1 more source
Excited state absorption measurement in bismuth-doped silicate fibers for use in 1160nm fiber laser
, 2008 Bi-doped fiber lasers (BiDFLs) demonstrated so far have been limited to 1080 nm pumping band at which high power laser diodes (LDs) are not readily available. [1,2] Direct LD pumping will make the BiDFLs more compact and cost-effective.
Kalita, M.P. +4 more
core
Optical Fiber Amplifiers-Review
, 2009 This paper reviews optical fiber amplifiers such asErbium doped fiber amplifiers EDFAs, many types of Ramanamplifiers RAs, Thulium doped fiber amplifiers, Tellurite-basedfiber Raman amplifiers, semiconductor optical amplifiers andfiber optic parametric ...
Wasfi, Mahmud
core +1 more source
Multidimensional Cellular Micro‐Compartments to Model Invasive Lobular Carcinoma Dormancy
Advanced Healthcare Materials, EarlyView.Invasive lobular carcinoma (ILC) is an understudied subtype of breast cancer that is susceptible to late recurrences. In this study, micro‐compartmentalization techniques spanning multiple dimensions, including 2D, pseudo‐3D, and 3D, are integrated to uncover the mechanisms underlying ILC dormancy, revealing the central role of p27Kip1.
Xilal Y. Rima +15 more
wiley +1 more source