Results 31 to 40 of about 136,526 (234)

Multifunctional photonic integrated circuit for diverse microwave signal generation, transmission and processing [PDF]

open access: yes, 2019
Microwave photonics (MWP) studies the interaction between microwave and optical waves for the generation, transmission and processing of microwave signals (i.e., three key domains), taking advantages of broad bandwidth and low loss offered by modern ...
Cao, Zizheng   +11 more
core   +2 more sources

Design and Analysis of XOR Logic Gate Based on Two-Photon Absorption

open access: yesMATEC Web of Conferences, 2016
Two-photon absorption with high intensity pump beam occurs in a SOA depends on fast phase change of a weak probe signal. This work analysed optical XOR logic function using two-photon absorption induced fast phase change. A rate equation for SOA and both
Nazir N.S.   +6 more
doaj   +1 more source

Inverse Scattering Method Design of Regrowth-Free Single-Mode Semiconductor Lasers Using Pit Perturbations for Monolithic Integration

open access: yesIEEE Photonics Journal, 2018
An inverse scattering method is used to design regrowth-free single-mode lasers, using etch depth insensitive pits as perturbations in the laser cavity. These pit perturbations are circular holes etched into the waveguide of each laser to a depth 0.8$\mu
Kevin Shortiss   +4 more
doaj   +1 more source

Fast Escape from Quantum Mazes in Integrated Photonics [PDF]

open access: yes, 2015
Escaping from a complex maze, by exploring different paths with several decision-making branches in order to reach the exit, has always been a very challenging and fascinating task.
Caruso, Filippo   +4 more
core   +4 more sources

Investigation of All-photonic Multiple Signals Format Converter to Carrier- suppressed Signals

open access: yesMATEC Web of Conferences, 2016
Advance modulation format such as carrier suppressed return to zero (CSRZ) is used in several optical communication systems. The generation of CSRZ signal is reported in this paper by means of allphotonics format converter to its suppressed carrier ...
Khairuddin N.Z.   +6 more
doaj   +1 more source

Integrated TiO2 resonators for visible photonics [PDF]

open access: yes, 2011
We demonstrate waveguide-coupled titanium dioxide (TiO2) racetrack resonators with loaded quality factors of 2x10^4 for the visible wavelengths. The structures were fabricated in sputtered TiO2 thin films on oxidized silicon substrates using standard top-
Alasaarela   +28 more
core   +2 more sources

Development of ZnO Infrared LED and Its Emissivity

open access: yesMATEC Web of Conferences, 2016
This paper provides an investigation of the design and characterization of zinc oxide (ZnO) in infrared light emitting diode (LED) application. Zinc oxide has been proved as one of the material that consists of wide range of electrical and optical ...
Saidi N.N.A.   +7 more
doaj   +1 more source

Modification of Level Dependent ASE-Signal Beat Noise by Optical and Electrical Filtering in Optically Preamplified Direct Detection Receivers

open access: yesIEEE Photonics Journal, 2018
We derive compact equations describing the modification of amplified spontaneous emission signal beat noise arising from optical and electrical filtering in optically preamplified direct detection receivers.
J. Witzens, J. Muller, A. Moscoso-Martir
doaj   +1 more source

ZnSe Light Emitting Diode Quantum Efficiency and Emission Characterization

open access: yesMATEC Web of Conferences, 2016
ZnSe has demonstrated as a potential candidate in realizing advance LED in some appications for current and future works that utilize a cheaper preparation technique. Blue and white LEDs have been shown to spread across compound semiconductors.
Sahbudin U.K.   +7 more
doaj   +1 more source

Breakthroughs in Photonics 2013: Toward Feedback-Controlled Integrated Photonics

open access: yesIEEE Photonics Journal, 2014
We present an overview of the main achievements obtained in 2013 on the monitoring, stabilization, and feedback loop control of passive and active photonic integrated circuits.
F. Morichetti, S. Grillanda, A. Melloni
doaj   +1 more source

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