IPG Photonics

About: IPG Photonics is a based out in . It is known for research contribution in the topics: Laser & Fiber laser. The organization has 903 authors who have published 1241 publications receiving 63339 citations.

Transport Properties of Compact Clays.

Abstract: Conductivity and permeability of model and natural clays have been studied experimentally. Local properties such as porosity and zeta potentials were measured as functions of the electrolyte solutions. Whenever possible, experimental data were compared to numerical data obtained for random packings of grains of arbitrary shape, and a good agreement was found between them.

System and method for laser beveling and/or polishing

Abstract: Laser processing of hard dielectric materials may include cutting a part from a hard dielectric material using a continuous wave laser operating in a quasi-continuous wave (QCW) mode to emit consecutive laser light pulses in a wavelength range of about 1060 nm to 1070 nm. Cutting using a QCW laser may be performed with a lower duty cycle (e.g., between about 1% and 15%) and in an inert gas atmosphere. Laser processing of hard dielectric materials may further include post-cut processing the cut edges of the part cut from the dielectric material, for example, by beveling and/or polishing the edges to reduce edge defects. The post-cut processing may be performed using a laser beam with different laser parameters than the beam used for cutting, for example, by using a shorter wavelength (e.g., 193 nm excimer laser) and/or a shorter pulse width (e.g., picosecond laser).

1.6 Tbit/s (40/spl times/42.7 Gbit/s) transmission over 3600 km UltraWave/spl trade/ fiber with all-Raman amplified 100 km terrestrial spans using ETDM transmitter and receiver

Abstract: We demonstrate error free transmission of 40/spl times/40 Gbit/s over a record distance of 36/spl times/100 km UltraWave/spl trade/ dispersion managed fiber with all-Raman amplification and 100 GHz channel spacing CS-RZ modulation and 43 Gbit/s ETDM transmitter and receiver are used

Visible-near-middle infrared spanning supercontinuum generation in a silicon nitride (Si3N4) waveguide

Abstract: We demonstrate the generation of a supercontinuum spanning more than 1.5 octaves over the 1.2–3.7 µm range in a silicon nitride waveguide using sub-40-fs pulses at 2.35 µm generated by a 75 MHz Kerr-lens mode-locked Cr:ZnS laser.

Lucky Strike seamount: Implications for the emplacement and rifting of segment‐centered volcanoes at slow spreading mid‐ocean ridges

Abstract: The history of emplacement, tectonic evolution, and dismemberment of a central volcano within the rift valley of the slow spreading Mid-Atlantic Ridge at the Lucky Strike Segment is deduced using near-bottom sidescan sonar imagery and visual observations Volcano emplacement is rapid (<1 Myr), associated with focused eruptions, and with effusion rates feeding lava flows that bury tectonic features developed prior to and during volcano construction This volcanic phase likely requires efficient melt pooling and a long-lived crustal magma chamber as a melt source A reduction in melt supply triggers formation of an axial graben rifting the central volcano, and the onset of seafloor spreading may eventually split it At Lucky Strike, this results in two modes of crustal construction Eruptions and tectonic activity focus at a narrow graben that bisects the central volcano and contains the youngest lava flows, accumulating a thick layer of extrusives Away from the volcano summit, deformation and volcanic emplacement is distributed throughout the rift valley floor, lacking a clear locus of accretion and deformation Volcanic emplacement on the rift floor is characterized by axial volcanic ridges fed by dikes that propagate from the central axial magma chamber The mode of rapid volcano construction and subsequent rifting observed at the Lucky Strike seamount is common at other central volcanoes along the global mid-ocean ridge system