Results 31 to 40 of about 166,720 (284)

Polarization-independent wavelength conversion at 2.5 Gb/s by dual-pump four-wave mixing in a strained semiconductor optical amplifier [PDF]

open access: yes, 1996
We give a general expression for the polarization dependence of the four-wave mixing (FWM) efficiency in the dual-pump configuration. This expression, along with some general properties of the FWM susceptibility tensor, is used to propose a simple scheme
Geraghty, David F.   +4 more
core   +1 more source

Polarization-independent longitudinal multi-focusing metalens

open access: yesOptics Express, 2015
A novel multi-focusing metalens in the longitudinal direction has been proposed and investigated based on the equal optical path principle, which is independent on the incident polarizations and can be suitable for both of the linear and circular polarization incidences simultaneously.
Wei, Wang   +7 more
openaire   +2 more sources

A Compact Low-Loss Broadband Polarization Independent Silicon 50/50 Splitter

open access: yesIEEE Photonics Journal, 2021
We present a low-loss, compact, polarization insensitive 3-dB optical power-splitter for submicron silicon waveguides. The splitter is optimized over a broad wavelength span ranging from 1300 to 1700 nm through finite difference time domain simulations ...
Devika Padmakumar Nair, Michael Menard
doaj   +1 more source

Polarization-independent broadband bidirectional optical cloaking using a new type of inverse scattering approach [PDF]

open access: yes, 2017
(c) 2017 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other users, including reprinting/ republishing this material for advertising or promotional purposes, creating new collective works for resale or ...
Botey Cumella, Muriel   +4 more
core   +1 more source

Wideband Polarization Independent Resonant Cavity Antenna for 6G Applications

open access: yesIEEE Access, 2023
In this paper, a planar polarization independent resonant cavity antenna (RCA) is proposed to achieve higher gain with a single patch connection instead of using antenna arrays with additional feeding losses.
Mehrab Ramzan, Padmanava Sen
doaj   +1 more source

Birefringence-derived artifact in optical coherence tomography imaging of the lamina cribrosa in eyes with glaucoma

open access: yesScientific Reports, 2023
We investigated birefringence-derived artifacts that potentially mimic focal defects of the lamina cribrosa (focal LC defects) in optical coherence tomography (OCT) imaging of eyes with glaucoma.
Masahiro Miura   +6 more
doaj   +1 more source

Silicon grating structures for optical fiber interfacing and III-V/silicon opto-electronic components [PDF]

open access: yes, 2013
In this paper, we review our work on efficient, broadband and polarization independent interfaces between a silicon-on-insulator photonic IC and a single-mode optical fiber based on grating structures.
Baets, Roel   +8 more
core   +1 more source

Interdiffusion-induced polarization-independent optical gain of an InGaAs-InP quantum-well with carrier effects [PDF]

open access: yes, 1999
A theoretical study of the polarization-independent optical gain using group V sublattice interdiffusion in InGaAs-InP quantum wells (QW's) is presented here.
Chan, MCY, Choy, WCH, Li, EH, Weiss, BL
core   +1 more source

Automated Adaptation and Stabilization of a Tunable WDM Polarization-Independent Receiver on Active Silicon Photonic Platform

open access: yesIEEE Photonics Journal, 2020
We demonstrate automated adaptation, and stabilization of a silicon photonic wavelength-division multiplexing (WDM), polarization-independent receiver.
Minglei Ma   +4 more
doaj   +1 more source

Polarization independent lattice-coupled terahertz toroidal excitation

open access: yesJournal of Physics D: Applied Physics, 2023
Abstract The toroidal dipole excitation is important for metamaterial research because of its low-loss attribute. In this study, we demonstrate numerically and experimentally, a unique toroidal metasurface that modulates a broad resonance into a sharp mode, independent of the polarization of the incident terahertz (THz) radiation, by ...
Angana Bhattacharya   +4 more
openaire   +2 more sources

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