Results 31 to 40 of about 451,009 (339)

Performance Analysis of a Broadband Second-Order Mode Converter Based on Multimode Interference Coupler and Phase Shifter

open access: yesIEEE Photonics Journal, 2015
A novel mode converter with broad bandwidth, high mode conversion efficiency, and large fabrication tolerance is proposed and fabricated on a silicon-on-insulator (SOI) platform.
Jifang Qiu   +5 more
doaj   +1 more source

M-lines characterization of selenide and telluride waveguides for mid-infrared interferometry [PDF]

open access: yes, 2006
Nulling interferometry is an astronomical technique that combines equal wavefronts to achieve a deep rejection ratio of an on-axis star, and that could permit to detect Earth-like planets in the mid-infrared band 5 -- 20 microns.
Arezki, Brahim   +5 more
core   +4 more sources

Graphene Oxide for Integrated Photonics and Flat Optics [PDF]

open access: yesAdvances in Materials, 2020
With superior optical properties, high flexibility in engineering its material properties, and strong capability for large‐scale on‐chip integration, graphene oxide (GO) is an attractive solution for on‐chip integration of 2D materials to implement ...
Jiayang Wu   +5 more
semanticscholar   +1 more source

Analysis of OAM Mode Purity of Integrated Optical Vortex Beam Emitters

open access: yesIEEE Photonics Journal, 2017
A theoretical analysis is presented to investigate the orbital angular momentum (OAM) mode purity of microring-resonator-based integrated optical vortex emitters.
Changzheng Sun   +8 more
doaj   +1 more source

Broadband high-efficiency near-infrared graphene phase modulators enabled by metal–nanoribbon integrated hybrid plasmonic waveguides

open access: yesNanophotonics, 2021
The phase modulator is a key component in optical communications for its phase modulation functions. In this paper, we numerically demonstrate a variety of ultra-compact high-efficiency graphene phase modulators (GPMs) based on metal–nanoribbon ...
Ye Longfang   +5 more
doaj   +1 more source

Ultrabroadband High Coupling Efficiency Fiber-to-Waveguide Coupler Using Si $_{3}$N$_{4}$ /SiO$_{2}$ Waveguides on Silicon

open access: yesIEEE Photonics Journal, 2016
An easy-to-fabricate but very efficient fiber-to-waveguide coupler is theoretically analyzed and experimentally demonstrated. In this design, light from a single-mode fiber can be butt coupled into a single-mode high-index-contrast Si$_{3}$N $_{4}$/SiO$_{
Tiecheng Zhu   +5 more
doaj   +1 more source

Integrated optics for astronomical interferometry. I. Concept and astronomical applications

open access: yes, 1999
We propose a new instrumental concept for long-baseline optical single-mode interferometry using integrated optics which were developed for telecommunication.
F. Malbet   +5 more
core   +1 more source

A Compact Low-Power 320-Gb/s WDM Transmitter Based on Silicon Microrings

open access: yesIEEE Photonics Journal, 2014
We demonstrate a compact and low-power wavelength-division multiplexing transmitter near a 1550-nm wavelength using silicon microrings. The transmitter is implemented on a silicon-on-insulator photonics platform with a compact footprint of 0.5 mm2.
Ran Ding   +10 more
doaj   +1 more source

Bloch surface waves at the telecommunication wavelength with lithium niobate as the top layer for integrated optics. [PDF]

open access: yesApplied Optics, 2018
Lithium niobate (LN)-based devices are widely used in integrated and nonlinear optics. This material is robust and resistive to high temperatures, which makes the LN-based devices stable, but challenging to fabricate.
Tatiana Kovalevich   +7 more
semanticscholar   +1 more source

Lithium Niobate-Based Integrated Photonics Utilizing Photorefractive Effect

open access: yesCommunications, 2017
Lithium niobate (LiNbO3) is an ideal material with many interesting properties for integrated photonics. Despite the rich set of properties the technology of lithium niobate integrated optics has not evolved as much as integrated optics in III-V ...
Norbert Tarjanyi, Daniel Kacik
doaj   +1 more source

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