Results 71 to 80 of about 116,843 (276)
Effect of many weak side modes on relative intensity noise of distributed feedback semiconductor lasers [PDF]
, 1998 An increase of the relative intensity noise of nearly single-mode distributed feedback lasers with respect to that predicted by single-mode theory after propagation in dispersive fiber at frequencies up to 5 Ghz has been measured.
Marshall, William K. +3 more
core +2 more sources
Sol–Gel Derived Polymer Precursors for Stereolithography of ZrC
Advanced Engineering Materials, EarlyView.ZrC is a critical material target for extreme temperature conditions. This report describes a protocol for preparing ZrC ceramics via stereolithography and examines the impact of the polymer matrix on carbothermal reduction and mechanical stability of 3D printed ZrC.
Charles J. Rafalko +2 more
wiley +1 more source
Advanced Engineering Materials, EarlyView.This study investigates laser‐based oxide removal of Cu inserts in oxygen‐free conditions and examines long‐term oxidation kinetics and surface chemistry under different atmospheres via X‐ray photoelectron spectroscopy. Al–Cu compound casting with differently oxidized surfaces is performed, and intermetallic phase formation, morphology, and thermal ...
Timon Steinhoff +9 more
wiley +1 more source
Modeling of
IEEE Photonics Journal, 2013 A numerical study of As2S3 Raman fiber lasers is carried out to show their potential for the entire coverage of the 3-4-μm spectral band. Experimental results are first obtained from such a laser operated under controlled conditions in order to ...
Vincent Fortin +4 more
doaj +1 more source
Sub-100-as timing jitter optical pulse trains from mode-locked Er-fiber lasers
, 2011 We demonstrate sub-100-attosecond timing jitter optical pulse trains generated from free-running, 77.6-MHz repetition-rate, mode-locked Er-fiber lasers.
Chang Hee Nam +17 more
core +1 more source
Advanced Engineering Materials, EarlyView.The wettability of aluminum droplets (Al) on different copper substrates (Cu), where liquid Al spreads on solid Cu surfaces to form a liquid–solid interface, is studied numerically and experimentally. The experimental and numerical results show good agreement in the fast‐spreading regime.
Shan Lyu +8 more
wiley +1 more source
Pulsed Single Frequency Fiber Lasers
EPJ Web of Conferences, 2016 Pulsed single frequency fiber lasers with mJ level near 1 micron, 1.55 micron and 2 micron wavelengths were demonstrated by using our proprietary highly doped fibers.
Jiang Shibin
doaj +1 more source
Synchronization in fiber lasers arrays [PDF]
, 2013 We consider an array of fiber lasers coupled through the nearest neighbors. The model is a generalized nonlinear Schroedinger equation where the usual Laplacian is replaced by the graph Laplacian.
Aceves, A., Caputo, J. G.
core
Advanced Engineering Materials, EarlyView.Through direct application of porous transport layer (PTL) on the bipolar plate (BPP) with thermal spraying, the interfacial contact resistance is improved. With the cold gas sprayed BPP–PTL coating system, a proton exchange membrane water electrolysis cell with a cell voltage of Ucell = 1.9 V can be operated up to i = 2.5 A/cm2 in a dynamic mode ...
Kirsten Bobzin +5 more
wiley +1 more source
Fibre lasers: the new wave in material processing
, 2005 In the last few years, fibre lasers have established themselves as the preferred laser source in many applications. The combination of small size, maintenance-free operation, thermal and electrical efficiency combined with outstanding (diffraction ...
Parker, David, Payne, David N.
core +1 more source