Results 21 to 30 of about 3,214,955 (326)

Design, Fabrication, and Characterization of Near-Milliwatt-Power RCLEDs Emitting at 390 nm

open access: yesIEEE Photonics Journal, 2013
We report on the realization and first demonstration of CW near-milliwatt-power emission at λ = 390 nm from resonant-cavity light-emitting diode (RCLED) on GaN templates.
T. Moudakir   +10 more
doaj   +1 more source

Coupled-mode analysis of fiber-optic add drop filters for dense wavelength-division multiplexing [PDF]

open access: yes, 1997
We present a coupled-mode theory of fiber-optic add drop filters, which involve directional coupling between two fibers combined with fiber Bragg gratings defined inside the coupling region.
Orlov, Sergei S.   +2 more
core   +1 more source

Mechanical properties of abaca fiber reinforced polypropylene composites: Effect of chemical treatment by benzenediazonium chloride

open access: yesJournal of King Saud University: Engineering Sciences, 2017
Untreated abaca fibers and benzenediazonium chloride treated abaca strands were employed as reinforcements for fabricating polypropylene composites by injection molding method. Various composites were fabricated with different fiber loadings of 30%, 35%,
Ramadevi Punyamurthy   +4 more
doaj   +1 more source

Rapid characterization of the ultraviolet induced fiber Bragg grating complex coupling coefficient as a function of irradiance and exposure time [PDF]

open access: yes, 2007
We report the application of optical frequency domain reflectometry and a discrete-layer-peeling inverse scattering algorithm to the spatial characterization of the UV induced complex coupling coefficient during fiber Bragg grating growth.
Cranch, Geoffrey A.   +2 more
core   +1 more source

Fiber-coupling efficiency of a Gaussian-beam in anisotropic non-Kolmogorov turbulence in the presence of random angular jitter

open access: yes, 2020
Increasing experimental evidence and theoretical results verify that the non-Kolmogorov property and anisotropy are both exhibited in the atmospheric turbulence.
Chao Zhai
semanticscholar   +1 more source

Pixel-to-Pixel Fiber-Coupled Emissive Micro-Light-Emitting Diode Arrays

open access: yesIEEE Photonics Journal, 2009
We report on an integrated fiber-coupled bi-linear micro-light-emitting diode array, serving as a portable microdisplay system. The fiber bundle transforms the bi-linearly arranged optical signals from the emissive array into a 6-by-8 pixel microdisplay,
L. Zhu   +5 more
doaj   +1 more source

Theoretical Study of Novel Microfiber-Typed Tunable Optical Attenuator

open access: yesNantong Daxue xuebao. Ziran kexue ban, 2020
In this study, a new type of micro-nano fiber tunable optical attenuator is studied, and the model of micronano fiber probe coupler is designed with its help.
JI Yancheng; CHEN Yupei; SUN Dan; DUAN Wei
doaj   +1 more source

2-D Grating Couplers for Vertical Fiber Coupling in Two Polarizations

open access: yesIEEE Photonics Journal, 2019
We demonstrate highly efficient couplers in a two-dimensional grating configuration for a vertical fiber-coupling fabricated in the silicon-on-insulator platform.
Tatsuhiko Watanabe   +2 more
semanticscholar   +1 more source

Effect of Different Silane Coupling Agents on Properties of Waste Corrugated Paper Fiber/Polylactic Acid Composites

open access: yesPolymers, 2023
The surface of plant fibers was modified by silane coupling agents to prepare plant fiber/polylactic acid (PLA) composites, which can improve the dispersion, adhesion, and compatibility between the plant fibers and the PLA matrix.
Mannan Yang   +5 more
semanticscholar   +1 more source

Coupling efficiency of a partially coherent collimating laser from turbulent biological tissue to fiber

open access: yesResults in Physics, 2019
We propose a model of the fiber coupling efficiency for a partially coherent collimating laser beam propagating through turbulent biological tissue to fiber.
Qiyong Liang   +5 more
doaj   +1 more source

Home - About - Disclaimer - Privacy