Results 11 to 20 of about 15,530 (219)
Ciencia e Ingeniería Neogranadina, 2019 Este artículo presenta una propuesta para la compensación de la ganancia no uniforme de los amplificadores ópticos de fibra dopada con Erbio (edfa) en sistemas multiplexados por longitud de onda (wdm) usando redes de difracción de Bragg (fbg).
David Esteban Montoya Alba +2 more
doaj +1 more source
Measuring Optimal Length of the Amplifying Fiber in Different Working Conditions of the Amplifier
Advances in Electrical and Electronic Engineering, 2014 The aim of this article is to highlight possible unwanted behaviour of an EDFA optical amplifier during temperature changes. After a brief introduction dealing with amplifiers and doped fibers in general we focus on the assembly of our own EDFA amplifier
Radek Poboril +6 more
doaj +1 more source
IEEE Photonics Journal, 2021 We propose a design of ring-core few-mode fiber (RC-FMF) with the erbium doping at the cladding region near the outer ring edge. After the parameter optimization of the RC-FM-EDF, the intensity overlapping difference between LP01 and LP11 modes can be ...
Yihong Fang +5 more
doaj +1 more source
Journal of Information and Telecommunication, 2020 Optical Communication system consists of three main blocks, such as a transmitter, a transmission channel and a receiver. The modulation and demodulation techniques are the most important for the transmitter and receiver, respectively, to transmit and ...
A. S. Kang +3 more
doaj +1 more source
Measurement of the stimulated carrier lifetime in semiconductor optical amplifiers by four-wave mixing of polarized ASE noise [PDF]
, 1997 We present a simple experiment aimed at measuring the stimulated carrier lifetime in semiconductor optical amplifiers (SOA's). The technique relies on polarization-resolved nearly degenerate four-wave mixing (FWM) of a laser source with an amplified ...
Hunziker, Guido +3 more
core +1 more source
Volterra-assisted Optical Phase Conjugation: a Hybrid Optical-Digital Scheme For Fiber Nonlinearity Compensation [PDF]
, 2018 Mitigation of optical fiber nonlinearity is an active research field in the area of optical communications, due to the resulting marked improvement in transmission performance.
Bayvel, Polina +2 more
core +2 more sources
Analysis of Possibilities of Increasing the Spanned Distance Using EDFA and DRA in DWDM System
Communications, 2017 The aim of this article is a comparison of the EDFA (Erbium Doped Fibre Amplifier) and the DRA (Distributed Raman Amplifier) in a fully optical communication system, working on a specific wavelength. The amplifiers are compared based on their position in
Tomas Ivaniga +3 more
doaj +1 more source
Gain Characteristics of Few-Mode EDFA With Different Pump
IEEE Photonics Journal, 2022 Few-mode erbium-doped fiber amplifier (FM-EDFA) is a key device to achieve power compensation in long-haul mode division multiplexing (MDM) optical system.
Wenxuan Xu +7 more
doaj +1 more source
Co-axial dual-core resonant leaky fibre for optical amplifiers [PDF]
, 2008 We present a co-axial dual-core resonant leaky optical fibre design, in which the outer core is made highly leaky. A suitable choice of parameters can enable us to resonantly couple power from the inner core to the outer core. In a large-core fibre, such
Ajeet Kumar +9 more
core +4 more sources
Wavelength conversion for WDM communication systems using four-wavemixing in semiconductor optical amplifiers [PDF]
, 1997 Four-wave mixing (FWM) in semiconductor optical amplifiers is an attractive mechanism for wavelength conversion in wavelength-division multiplexed (WDM) systems since it provides modulation format and bit rate transparency over wide tuning ranges.
Geraghty, David F. +5 more
core +1 more source