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Optical Switching in Future Fiber-Optic  Networks Utilizing Spectral and Spatial
Degrees of Freedom

   
   

Optical fibers supporting SDM transmission Connectivity options between SDM/discrete components and fibers. Optical node throughput growth trend. The node throughput is the product of number of fiber ports, number of spatial lanes, number of wavelengths, and bit rate per wavelength. Channel switching options for an ingress SDM/WDM optical fiber of an optical network node.

   
   

Future terrestrial SDM optical transport network, showing the optical fibers, optical amplifiers, optical switches, and line terminating units, all adapted for SDM. Large-scale wavelength switching for SDM network nodes.  SDM/WDM fronthaul network with different multiplexing and demultiplexing options at cell sites Optical TTDL based on differential delays of guided modes within tailored SDM fibers.

   
   

Intra-datacenter communications networks. Two classes of flat optical layer intra-datacenter connectivity.

   
   

Forthcoming capacity scaling requirements of optical networks and advances in optical fiber communications beyond the omnipresent single-mode fiber operating over the conventional band introduces new opportunities and challenges for exploiting the expanded spectral and spatial resources available for fiber-optic network designs. The spectral and spatial degrees of freedom introduce utilization tradeoffs that can be leveraged under different applications. After briefly reviewing the supporting network building elements (emerging fiber types, multiplexers, optical switches, and amplifiers), networking scenarios such as intra/inter datacenter, terrestrial, undersea, and wireless 5G/6G hauling networks are considered and  the best utilization plan and key attributes that can be harnessed by the offered spectral and spatial degrees of freedom for each scenario and how optical switching can be employed therein for traffic management are identified. Networks supporting these scenarios are experiencing tremendous traffic growth pushing their existing implementations to their physical capacity-distance limits. New network builds must offer significant capacity multipliers in an efficient and cost-effective manner, requiring new switching solutions for supporting the unabated traffic growths foreseen in the years to come. How space-division multiplexed networks can help address this challenge in key communication scenarios is also discussed in Optical Switching in Future Fiber-Optic Networks Utilizing Spectral and Spatial (IEEE).

   
   
   
   

About TACS

   
   
TACS Consulting Delivers The Insight and Vision on Information Communication and Energy Technologies for Strategic Decisions.

TACS is Pioneer and Innovator of many Communication Signal Processors, Optical Modems, Optimum or Robust Multi-User or Single-User MIMO Packet Radio Modems, 1G Modems, 2G Modems, 3G Modems, 4G Modems, 5G Modems, 6G Modems, Satellite Modems, PSTN Modems, Cable Modems, PLC Modems, IoT Modems and more..

TACS consultants conducted fundamental scientific research in the field of communications and are the pioneer and first inventors of PLC MODEMS, Optimum or Robust Multi-User or Single-User MIMO fixed or mobile packet radio structures in the world.

TACS is a leading top consultancy in the field of Information, Communication and Energy Technologies (ICET). The heart of our Consulting spectrum comprises strategic, organizational, and technology-intensive tasks that arise from the use of new information and telecommunications technologies. TACS Consulting offers Strategic Planning, Information, Communications and Energy Technology Standards and Architecture Assessment, Systems Engineering, Planning, and Resource Optimization.

 

 
   

TACS is a leading top consultancy in the field of information, communication and energy technologies (ICET).

   
   

The heart of our consulting spectrum comprises strategic, organizational, and technology-intensive tasks that arise from the use of new information, communication and energy technologies. 
 
The major emphasis in our work is found in innovative consulting and implementation solutions which result from the use of modern information, communication and energy technologies.

 
   

TACS 

   
   
  • Delivers the insight and vision on technology for strategic decisions
  • Drives innovations forward as part of our service offerings to customers worldwide 
  • Conceives integral solutions on the basis of our integrated business and technological competence in the ICET sector 
  • Assesses technologies and standards and develops architectures for fixed or mobile, wired or wireless communications systems and networks
  • Provides the energy and experience of world-wide leading innovators and experts in their fields for local, national or large-scale international projects.
   
 


 

   
   
 

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Last modified: September 20, 2023