Results 71 to 80 of about 2,670,948 (163)

Increased Endurance of Nonvolatile Photonics Enabled by Nanostructured Phase‐Change Materials

Advanced Materials, Volume 38, Issue 31, 2 June 2026.
Tapered and segmented islands of the phase‐change material (PCM) antimony selenide (Sb2Se3) integrated on silicon microring resonators enable ultra‐low‐loss, high‐endurance, non‐volatile photonic tuning. The nanostructured PCM design suppresses interfacial scattering and thermal stress, achieving record endurance over 100 million electrical switching ...
Jayita Dutta, Andrew Tang, Brian Mills, Rui Chen, Arnab Manna, Gokul Nath SJ, Virat Tara, Dennis Callahan, Cosmin Constantin Popescu, Juejun Hu, Arka Majumdar   +10 more
wiley   +1 more source

Investigation of performance issues affecting optical circuit and packet switched WDM networks [PDF]

, 2009
Optical switching represents the next step in the evolution of optical networks. This thesis describes work that was carried out to examine performance issues which can occur in two distinct varieties of optical switching networks.
Smyth, Frank
core   +2 more sources

Study of Free‐Space Optical Quantum Network: Review and Prospectives

Advanced Science, Volume 13, Issue 36, 29 June 2026.
Free from the constraints of fiber connections, free‐space quantum network enables longer and more flexible quantum network connections. This review summarizes and comparatively analyzes free‐space quantum network experiments based on ground stations, satellites, and mobile platforms.
Hua‐Ying Liu, Zhenda Xie, Shining Zhu
wiley   +1 more source

All-optical interconnection of broadband optical customer networks

, 2022
Transparent optical networks will become more and more important in the near future. Therefore a key issue for future optical networking is the all-optical interconnection of existing, independent networks.
Hermes, T., Saniter, J., Westphal, F.-J., Hilbk, U.   +3 more
core   +1 more source

Comparison the Performance Evaluation of Xgpon-Rof System with Wdm and Scm for Different Modulation Schemes

Al-Qadisiyah Journal for Engineering Science, 2019
At the present time and as a result to the recent developed technology demand for higher data rate and capacity has been increased. For the wireless networks, the combination of radio over fiber (RoF) with (XGPON) Gigabit-capable PON techniques produce a
Muntadhar H. Ismeala, Bashar J. Hamzaa, Wasan Kadhim Saada   +2 more
doaj   +1 more source

Spatial relationship of turfgrass tissue nitrogen content and several vegetation indices on sand‐capped golf course fairways

Agrosystems, Geosciences &Environment, Volume 9, Issue 2, June 2026.
Abstract Vegetation indices (VIs), such as normalized difference vegetation index (NDVI), are widely used to assess nitrogen (N) status in crop systems and are gaining interest in turfgrass management. However, most studies have been conducted in controlled settings, and their relevance under real‐world golf course conditions remains unclear.
Madan Sapkota, Opeyemi E. Alabi, Weston W. Floyd, Sarah G. Hong, Dallas M. Williams, Briana M. Wyatt, A. Peyton Smith, Chase M. Straw   +7 more
wiley   +1 more source

Hybrid Approach for WDM Network Restoration: Deep Reinforcement Learning and Graph Neural Networks

IEEE Open Journal of the Computer Society
Ensuring robust and efficient service restoration in Wavelength Division Multiplexing (WDM) networks is crucial for maintaining network reliability amidst failures caused by disasters, equipment malfunctions, or power outages.
Isaac Ampratwum, Amiya Nayak
doaj   +1 more source

Availability of WDM Multi Ring Networks

Journal of Telecommunications and Information Technology, 2015
This paper presents a new approach to modeling the availability of the networks composed of multiple interconnected rings in two nodes. For availability modeling method algebraic formulation is used.
Ivan Rados, Katarina Rados
doaj   +1 more source

Dynamic Search‐Based Cluster Head Selection Method for Resource Occupation Protection Switching in Optical Fiber Communication Networks

Engineering Reports, Volume 8, Issue 6, June 2026.
This paper proposes a dynamic search cluster head selection method for resource occupancy protection switching. By integrating multidimensional fitness functions, energy consumption models, and closed‐loop control mechanisms, and combining optimized dynamic search strategies, the optimal cluster head is selected.
Lei Peng, Yaya Wu, Jing Yuan, Haofeng Yuan, Junbo Li, Chenfeng Qi, Yahan Zhang   +6 more
wiley   +1 more source

Considering Transmission Impairments in Wavelength Routed Networks [PDF]

, 2005
— We consider dynamically reconfigurable wavelength routed networks in which lightpaths carrying IP traffic are on demand established. We face the Routing and Wavelength Assignment problem considering as constraints the physical impairments that arise in
CARDILLO R., Vittorio Curri, Curri, Vittorio, Mellia, Marco, Marco Mellia, M. Mellia, Cardillo, R., V. Curri, R. Cardillo, Rocco Cardillo   +9 more
core   +1 more source