Results 61 to 70 of about 5,452 (212)

Sustainable economic development : concept, principles and management from Islamic perspective [PDF]

open access: yes, 2010
The basic concern of development in Islamic economic system is on human welfare. This is in line with the very basic objective of Islamic jurisprudence (Shari’ah ) which puts important to the welfare of the people and their relief from hardship. Economic
Basir, Siti Arni   +2 more
core   +1 more source

IP-Dwdm red óptima metropolitana [PDF]

open access: yes, 2004
En este trabajo se analiza el diseño e implementación de las redes ópticas metropolitanas IP-DWDM y su principal objetivo es el de ampliar los conceptos actuales acerca de la transmisión por fibra óptica a través del estudio de proyectos vigentes ...
Núñez González, Rafael
core   +1 more source

Monolithic temperature‐insensitive high‐Q Ta2O5 microdisk resonator

open access: yesNanophotonics, Volume 14, Issue 27, Page 5475-5483, December 2025.
Abstract We demonstrate a temperature‐insensitive high‐Q tantalum oxide (Ta2O5) microdisk resonator fabricated using electron‐beam lithography and inductively coupled plasma reactive‐ion etching. The microdisks exhibit a loaded Q‐factor of 4.25 × 105 at 1,550 nm, which more than doubles (∼9.3 × 105) following thermal annealing at 600 °C.
Zhen Yang   +11 more
wiley   +1 more source

DWDM网中全光波长转换器的研究

open access: yesGuangtongxin yanjiu, 2002
全光波长转换器 ( AOWC)是未来 DWDM网络中关键性器件之一 ,文章介绍了DWDM网中几种 AOWC的实现方法、原理和进展情况 ...
沈百林, 张新亮, 孙军强
doaj  

La technologie DWDM [PDF]

open access: yes, 2009
Cet article porte sur la technologie DWDM et sur la structure des ses systèmes.
SURUGIU, Vasile
core   +1 more source

一种简单实用的调节RFA增益平坦的方法

open access: yesGuangtongxin yanjiu, 2004
提出了一种用ASE宽带光源调节拉曼光纤放大器(RFA)增益平坦的简单方法.将该ASE宽带光源调节RFA增益平坦所得泵浦配置方案用于DWDM信号的放大,得到DWDM信号增益谱与相应波长处ASE信号的增益谱相近,且增益波动小于1dB.所用的方法结构简单,调节方便,可有效地调节利用RFA的DWDM系统增益平坦度,而不需要调节复杂、成本昂贵的DWDM信号源.
忻向军, 余重秀, 李安俭
doaj  

Photonics Breakthroughs 2024: Lithium-Niobate Photonics for Dense Wavelength-Division Multiplexing

open access: yesIEEE Photonics Journal
The growing demands for ultrahigh-capacity data transmission require advanced multiplexing for multiple channels together with high-speed modulation. The dense wavelength-division multiplexing (DWDM) technology has been widely utilized over the past few ...
Hongxuan Liu   +3 more
doaj   +1 more source

Coding techniques for diversity enhancement of dense wavelength division multiplexing MIMO‐FSO fault protection protocols systems over atmospheric turbulence channels

open access: yesIET Optoelectronics
An enhanced transmission is presented in a multiple‐input‐multiple‐output (MIMO) dense‐wavelength division multiplexed (DWDM) free‐space‐optical (FSO) communication link using diversity coding techniques under the effect of turbulent weather phenomenon ...
Ebrahim E. Elsayed   +7 more
doaj   +1 more source

DWDM Technology and E-Government Initiatives

open access: yes, 2006
The pervasive use of the Internet and unprecedented demand for dependable access to bandwidth-intensive multimedia applications motivate utilization of Dense Wavelength Division Multiplexing (DWDM) as a technological enabler of electronic government (e ...
Marlyn Kemper Littman
core   +1 more source

Aplicaciones de la tecnología Dwdm [PDF]

open access: yes, 2006
En esta investigación se muestra una descripción sencilla del funcionamiento de la tecnología DWDM, sus componentes, su evolución, sus aplicaciones y sus ventajas sobre otras tecnologías, así como la importancia de esta en el desarrollo de las ...
Sarmiento Hernández, Erick   +1 more
core   +1 more source

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