Results 91 to 100 of about 4,945 (207)

QoS multicast tree construction in IP/DWDM optical internet by bio-inspired algorithms [PDF]

, 2010
Copyright @ Elsevier Ltd. All rights reserved.In this paper, two bio-inspired Quality of Service (QoS) multicast algorithms are proposed in IP over dense wavelength division multiplexing (DWDM) optical Internet.
Bouillard, Castro, Chen, Chen, Chen, Cheng, Dorigo, Giacomazzi, Guo, Guo, Hui Cheng, Hwang, Ibrahim, Iyengar, Jia, Jia, Jiannong Cao, Lee, Li, Masutti, Min Huang, Pavani, Shengxiang Yang, Sim, Tancevski, Tu, Vijayalakshmi, Wang, Wang, Wang, Wei, Wong, Xingwei Wang, Yan, Yang, Yang, Ye, Zhao, Znati   +38 more
core   +1 more source

Design of Novel Fiber Optical Flexible Routing System

Applied Sciences, 2019
In this paper, we propose a new versatile routing device that utilizes arrayed waveguide gratings (AWGs), optical switches, and optical circulators to implement reconfigurable optical add/drop multiplexers (ROADMs), optical interleavers, and optical ...
Po-Tsung Wu, Tsair-Chun Liang
doaj   +1 more source

Hyperbolic Topological Quantum Sources

Advanced Science, Volume 12, Issue 18, May 15, 2025.
In this work, we present the experimental realization of hyperbolic topological quantum sources on silicon chips, which only require fewer resources to achieve a higher brightness. It shows a high utilization efficiency and a strong robustness. Abstract Robust Integrable Quantum Optical Sources, Constructed by Topological Boundary States, Are Crucial ...
Lu He, Lei Huang, Weixuan Zhang, Dongning Liu, Huizhen Zhang, Xue Feng, Fang Liu, Kaiyu Cui, Yidong Huang, Wei Zhang, Xiangdong Zhang   +10 more
wiley   +1 more source

Single-Frequency, Narrow-Linewidth Distributed Feedback Waveguide Laser in Al2O3:Er3+ on Silicon [PDF]

, 2010
A distributed feedback channel waveguide laser in erbium-doped aluminum oxide on a silicon substrate is reported. The optically pumped laser has a threshold pump power of 15 mW and emits 3 mW in single-frequency operation at 1545.2 nm wavelength with a ...
Agazzi, L., Bernhardi, E.H., Khan, M.R.H., Pollnau, M., Ridder, R.M. de, Roeloffzen, C.G.H., Wolferen, H.A.G.M. van, Wörhoff, K.   +7 more
core   +1 more source

Identification of optical fibres in a passive optical network using highly temperature insensitive filters and reflectors

IET Optoelectronics, Volume 19, Issue 1, January/December 2025.
The authors demonstrate the use of highly temperature insensitive dense wavelength division multiplexing filters combined with optical reflectors and optical time domain reflectometry to uniquely identify specific optical fibres beyond the optical splitter in an optical access passive optical network (PON). The very low wavelength shift (∼0.1 pm/°C) of
Stephanie R. Bally, Ian E. Horsley, Sophie Minoughan, Alistair J. Poustie   +3 more
wiley   +1 more source

Interfacial Roughness and Temperature Dependence of Narrow Band Thin Film Filters for the DWDM Passive Optical Networks

Advances in Electrical and Electronic Engineering, 2016
In the design of new components for passive optical networks (PONs), the non-ideal properties are worth considering. In this paper the influence of interface roughness and temperature changes on final transmittance of downstream channels blocking filters
Lubomir Scholtz, Libor Ladanyi, Jarmila Mullerova   +2 more
doaj   +1 more source

L-Band Erbium-Doped Fiber Optimization and Transmission Investigation

Photonics
The optical spectrum resource in the C-band has been used up due to dense wavelength division multiplexing (DWDM). Because of devices’ compatibility with both the C-band and the L-band, the L-band is a good choice for further capacity expansion ...
Kaihua Hu, Li Pei, Jianshuai Wang, Zhouyi Hu, Wenxuan Xu, Long Zhang, Jing Li, Li Zhong   +7 more
doaj   +1 more source

Experimental unconditionally secure covert communication in dense wavelength-division multiplexing networks

, 2017
Covert communication offers a method to transmit messages in such a way that it is not possible to detect that the communication is happening at all. In this work, we report an experimental demonstration of covert communication that is provably secure ...
Arrazola, Juan Miguel, Li, Hao, Liu, Wen-Zhao, Liu, Yang, Pan, Jian-Wei, Primaatmaja, Ignatius William, Scarani, Valerio, Wang, Zhen, You, Lixing, Zhang, Qiang, Zhang, Weijun   +10 more
core  

Adaptación de la teoría de la información para el régimen de propagación lineal de una red óptica DWDM de próxima generación

Lámpsakos, 2019
En el desarrollo del presente artículo, se adapta la teoría de la información de Shannon y se propone una ecuación para la medida de la eficiencia espectral con el fin de aplicarla a los nuevos entornos de red ópticos NG-PON (Next Generation Passive ...
Gustavo Adolfo Gómez Agredo, Giovanny López Perafán   +1 more
doaj   +1 more source

Photonic Crystal Based 2/3/6- Way Optical Splitter and Demultiplexer

Frontiers in Physics, 2019
We present 2-, 3-, and 6-way optical demultiplexer and optical filters based on coupled waveguide and photonic crystal cavities. Demultiplexers with 3 nm channel separation and optical splitters with different transmission efficiencies are presented. The
Richa Goyal, Richa Goyal, Banoj Kumar Nayak, Ashwin Tulapurkar, Venu Gopal Achanta   +4 more
doaj   +1 more source