Results 21 to 30 of about 26,548 (312)

Photonic crystal and photonic wire nano-photonics based on silicon on insulator [PDF]

open access: yes, 2006
Silicon-on-insulator (SOI) is a strong candidate for application in future planar waveguide integration technology, whether or not luminescence is extracted from the silicon.
De La Rue, Richard   +28 more
core   +1 more source

Ultra-Small and Fabrication-Tolerant Silicon Polarization Beam Splitter Using Sharp Bent Directional Coupler

open access: yesIEEE Photonics Journal, 2018
An ultra-small polarization beam splitter on silicon-on-insulator platform is proposed and demonstrated experimentally employing a sharp bent directional coupler. The coupling length of our device is only 0.764 μm.
Xiaodong Wang   +5 more
doaj   +1 more source

Analytical and Experimental Investigation of a Silicon Photonic Two-Stage Mach–Zehnder Delay Interferometer-Type Polarization Beam Splitter

open access: yesIEEE Photonics Journal, 2018
We report the analytical and experimental results of a silicon photonic polarization beam splitter (PBS) consisting of two-stage Mach–Zehnder delay interferometers (MZDIs).
Kohei Morita, Hiroyuki Uenohara
doaj   +1 more source

Optical properties and thermal stability of the H+-implanted Dy3+/Tm3+-codoped GeS2–Ga2S3–PbI2 chalcohalide glass waveguide

open access: yesOpen Physics, 2022
Optical waveguides play a vital role in the manufacture of various optical devices due to their unique performances and high-degree integration. We report on the preparation and characterization of the planar waveguides in the Dy3+/Tm3+-codoped GeS2 ...
Wang Yu-Song   +5 more
doaj   +1 more source

Integration of Complex Optical Functionality in a Production CMOS Process [PDF]

open access: yes, 2005
Optical functionality has been developed within the confines of an existing CMOS process. As of this writing, 10Gigabit modulators, electrically tunable optical filters, waveguides, and grating coupler technology have been successfully implemented ...
Gunn, Lawrence Cary, III
core   +1 more source

Ultralow-Loss Planar $\hbox{Si}_{3}\hbox{N}_{4}$ Waveguide Polarizers

open access: yesIEEE Photonics Journal, 2013
We demonstrate broadband (1500-1620 nm) and low-loss planar waveguide polarizers with measurement-limited on-chip extinction as high as 75 dB. Polarizers can be fabricated in higher confinement 100-nm-thick as well as lower confinement 40-nm-thick Si3N4 ...
J. F. Bauters   +5 more
doaj   +1 more source

Microwave pulse compression using a helically corrugated waveguide [PDF]

open access: yes, 2005
There has been a drive in recent years to produce ultrahigh power short microwave pulses for a range of applications. These high-power pulses can be produced by microwave pulse compression.
Denisov, G.G.   +27 more
core   +1 more source

Four-port coupled channel-guide device based on 2D photonic crystal structure [PDF]

open access: yes, 2004
We have fabricated and measured a four-port coupled channel-waveguide device using W1 channel waveguides oriented along ΓK directions in a two-dimensional (2D) hole-based planar photonic crystal (PhC) based on silicon-on-insulator (SOI) waveguide ...
De La Rue, R M   +2 more
core   +1 more source

Electron waveguide devices

open access: yesSuperlattices and Microstructures, 1998
The discovery of electron waveguiding in one-dimensional (1D) semiconductor nanostructures has uncovered a new regime of electron transport with fascinating physics. The device potential of electron waveguides, however, remains largely unexplored. Over the last few years, our interuniversity team has been conducting research on the physics, technology ...
J.A. del Alamo   +4 more
openaire   +1 more source

Optical fibre taper-enabled waveguide photoactuators

open access: yesNature Communications, 2022
Despite promising devices, waveguide photoactuators actuating performances have been fundamentally restricted by the nature of standard optical fibres. To overcome these challenges, authors propose an optical fibre taper-enabled waveguide photoactuator ...
Jianliang Xiao   +13 more
doaj   +1 more source

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