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Relevant bibliographies by topics / Reconfigurable optical add / drop multiplexers (ROADM)

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Academic literature on the topic 'Reconfigurable optical add / drop multiplexers (ROADM)'

Author: Grafiati

Published: 4 June 2021

Last updated: 17 February 2022

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Journal articles on the topic "Reconfigurable optical add / drop multiplexers (ROADM)"

1

Kozdrowski, Stanisław, Mateusz Żotkiewicz, and Sławomir Sujecki. "Optimization of Optical Networks Based on CDC-ROADM Technology." Applied Sciences 9, no. 3 (2019): 399. http://dx.doi.org/10.3390/app9030399.

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New generation of optical nodes in dense wavelength division multiplexed networks enables operators to improve service flexibility and make significant savings, both in operational and capital expenditures. Thus the main objective of the study is to minimize optical node resources, such as transponders, multiplexers and wavelength selective switches, needed to provide and maintain high quality dense wavelength division multiplexed network services using new generation of optical nodes. A model based on integer programming is proposed, which includes a detailed description of an optical network

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2

Kundrát, Jan. "Software-Defined Optics in Last Mile for Research and Education in the Czech Republic." Journal of Communications Software and Systems 11, no. 4 (2015): 192. http://dx.doi.org/10.24138/jcomss.v11i4.97.

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The Software Defined Networking (SDN) gained recognition due to its improvements at the packet switching and routing layers. The benefits of programmable, remotely controllable networking devices can be applied to the optical layer of contemporary networks as well. This work introduces CESNET's Czech Light~® family of devices and their role in enabling the SDN approach within the CESNET's production network. As a case study, an upgrade of the Cheb node in CESNET's network from a hard-spliced add-drop multiplexers to SDN-capable Reconfigurable Optical Add-Drop Multiplexers (ROADM) is presented.

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3

Luong Van, Hieu, and Kien Do Trung. "OPTIMAL PROVISIONING OF OPTICAL NETWORKS WITH ASYMMETRIC NODES." Journal of Science Natural Science 65, no. 10 (2020): 36–48. http://dx.doi.org/10.18173/2354-1059.2020-0046.

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Wavelength Switched Optical Networks (WSONs) have been designed to take advantage of all optical switching fabrics with a high level of automation and efficiency. Therein, the Wavelength Selective Switches (WSS) represent the core switching elements with a technology enabling multi-degree Reconfigurable Optical Add\Drop Multiplexers (ROADM) architectures with colorless and directionless switching. In this paper, we propose an optimization model to establish the best ROADM switching connectivity to maximize the grade of service, for a given number of ports. We show that the grade of service can

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4

Nguyen, Vinh Huu, In Ki Kim, and Tae Joon Seok. "Silicon Photonic Mode-Division Reconfigurable Optical Add/Drop Multiplexers with Mode-Selective Integrated MEMS Switches." Photonics 7, no. 4 (2020): 80. http://dx.doi.org/10.3390/photonics7040080.

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Mode-division multiplexing (MDM) is an attractive solution for future on-chip networks to enhance the optical transmission capacity with a single laser source. A mode-division reconfigurable optical add/drop multiplexer (ROADM) is one of the key components to construct flexible and complex on-chip optical networks for MDM systems. In this paper, we report on a novel scheme of mode-division ROADM with mode-selective silicon photonic MEMS (micro-electromechanical system) switches. With this ROADM device, data carried by any mode-channels can be rerouted or switched at an MDM network node, i.e.,

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5

Holliday, Clifford, and Paul Polishuk. "Present State of Reconfigurable Optical Add Drop Multiplexers (ROADMs)." Fiber and Integrated Optics 27, no. 3 (2008): 127–30. http://dx.doi.org/10.1080/01468030802174094.

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6

Zhao, Dong Yan, Ke Ping Long, Yi Chuan Zheng, Zhi Yuan Du, Jun Fei Shi, and Shuo Cheng. "Control of Channel Power Compensation Based on Genetic Algorithm to Impairment Aware in Optical Network." Applied Mechanics and Materials 721 (December 2014): 226–29. http://dx.doi.org/10.4028/www.scientific.net/amm.721.226.

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In this paper, we address the problem to power impairment in amplified WDM communication networks with ROADM (Reconfigurable Optical Add-Drop Multiplexers), in order to improve the performance of communication systems. In dynamic transmission network, we propose a new control strategy that effectively adjusts signal power in the chain network. The results of simulation show that the proposed control strategy could effectively adjust better channel power and reduce the amount of adjustment to achieve transmission performance.

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7

Wu, Po-Tsung, and Tsair-Chun Liang. "Design of Novel Fiber Optical Flexible Routing System." Applied Sciences 9, no. 22 (2019): 4763. http://dx.doi.org/10.3390/app9224763.

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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 cross-connect (OXC). With the development of dense wavelength division multiplexing (DWDM) technology, ROADM and OXC technologies have also been put into practical use. Thus, the optical signal can be routed directly in the optical network according to its wavelength without the need for optical-electrical-optical (OEO) conversion. Although differe

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8

Wang, Qiang, Yang Yue, Jian Yao, and Jon Anderson. "Adaptive Compensation of Bandwidth Narrowing Effect for Coherent In-Phase Quadrature Transponder through Finite Impulse Response Filter." Applied Sciences 9, no. 9 (2019): 1950. http://dx.doi.org/10.3390/app9091950.

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Coherent in-phase quadrature (IQ) transponders are ubiquitous in the long-haul and the metro optical networks. During the transmission, the coherent signal experiences a bandwidth narrowing effect after passing through multiple reconfigurable optical add-drop multiplexers (ROADMs). The coherent signal also experiences a bandwidth narrowing effect when electrical or optical components of the coherent IQ transponder experience aging. A dynamic method to compensate the bandwidth narrowing effect is thus required. In the coherent optical receiver, signal bandwidth is estimated from the raw analog-

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9

Abdo, Ahmad, and Claude D’Amours. "Adaptive Pre/Post-Compensation of Cascade Filters in Coherent Optical Transponders." Future Internet 12, no. 2 (2020): 21. http://dx.doi.org/10.3390/fi12020021.

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We propose an adaptive joint pre- and post-compensation to correct the filtering effects caused by cascading reconfigurable optical add drop multiplexers (ROADMs). The improvement is achieved without using additional hardware (HW) on the link or within the signal processor in the transponders. Using Monte Carlo simulations, the gradient-descent based method shows an improvement of 0.6 dB and 1.1 dB in the required optical signal-to-noise ratio (R-OSNR) at the threshold pre-decoder bit error rate (BER) of 0.02 versus pre-compensation only in the linear and nonlinear operating region of fiber re

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10

Mitsolidou, Charoula, Christos Vagionas, Agapi Mesodiakaki, et al. "A 5G C-RAN Optical Fronthaul Architecture for Hotspot Areas Using OFDM-Based Analog IFoF Waveforms." Applied Sciences 9, no. 19 (2019): 4059. http://dx.doi.org/10.3390/app9194059.

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Analog fronthauling is currently promoted as a bandwidth and energy-efficient solution that can meet the requirements of the Fifth Generation (5G) vision for low latency, high data rates and energy efficiency. In this paper, we propose an analog optical fronthaul 5G architecture, fully aligned with the emerging Centralized-Radio Access Network (C-RAN) concept. The proposed architecture exploits the wavelength division multiplexing (WDM) technique and multicarrier intermediate-frequency-over-fiber (IFoF) signal generation per wavelength in order to satisfy the demanding needs of hotspot areas.

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