Results 101 to 110 of about 194,246 (337)
PRICING AND COSTING PRACTICES IN TELECOMMUNICATIONS: THE BRAZILIAN EXPERIENCE AND CHALLENGES
Brazilian Journal of Operations & Production Management, 2013 In this paper we provide an overview of the Brazilian regulatory framework for telecommunications, emphasizing the policies and models adopted for setting interconnection and access prices.
Sergio Luis Franklin Jr. +1 more
doaj
Topological Valley Photonic Waveguides: Scattering Matrix Evaluation for Linear Computing
Advanced Photonics Research, EarlyView.This research is focused on the design of a 6‐port junction via valley photonic crystal waveguides to achieve equal power splitting of an incident signal towards three other ports. An in‐depth study is carried out to extract its corresponding scattering matrix.
Christian Johnson-Richards +2 more
wiley +1 more source
Generalized Heterodyne Interferometry in Kerr Materials
Advanced Photonics Research, EarlyView.Interferometry, combined with heterodyne detection, enables simultaneous measurement of light amplitude and phase. This work applies these methods to study nonlinear phase shifts from the optical Kerr effect during laser pulse propagation. Results show the nonlinear index is straightforward to retrieve at low phases, but at higher powers, pulse shape ...
Arnaud Rogemont +3 more
wiley +1 more source
Colombian Media in the XXI Century: The Re-conquest by Foreign Investment
Palabra Clave, 2010 DOI: 10.5294/pacla.2010.13.1.4 This paper summarizes and examines the more relevant financial investments, mergers and acquisitions carried out in the Colombian media market by major international groups during the first decade of the 21st century.
Germán Arango-Forero +3 more
doaj
Advanced Photonics Research, EarlyView.In this study, the pronounced anisotropy in the optical properties of β‐Ga2O3 nanomembranes has been analized under a synchrotron nanoprobe. We have investigated the site‐specific contributions of distint Ga ions to the emission bands by combining polarization‐dependent X‐ray absorption near‐edge structure and X‐ray excited luminescence.
Paula Pérez‐Peinado +12 more
wiley +1 more source
Nonvolatile and Low‐Loss Reconfigurable Optical Switches Using Sb2S3 Phase Change Material
Advanced Photonics Research, EarlyView.Sb2S3‐assisted hybrid plasmonic waveguide‐based reconfigurable, nonvolatile 1 × 2 switch using an asymmetric directional coupler is presented. Its dual‐polarization functionality ensures its broader applicability and flexibility in integrated photonic systems where polarization diversity is often required.
Nisadur Rahman, Hasan Khaled Rouf
wiley +1 more source
Advanced Photonics Research, EarlyView.High‐energy ultrafast all‐fiber lasers are demonstrated in the 1.7–1.8 μm range using a novel Tm‐doped fiber with depressed cladding for dispersion tailoring and short‐pass filtering. A parabolic core enhances optical gain, overcoming poor gain overlap in conventional depressed cladding fibers.
Shaoxiang Chen +5 more
wiley +1 more source