Indonesia’s National Research and Innovation Agency (BRIN) is advancing optical-based sub-terahertz technology and intelligent cloud networking to support high-speed communication in the 6G era, as presented during the PRT #6 webinar on Thursday (27/11).

Researchers emphasized that the sub-terahertz spectrum is becoming a main candidate for ultra-fast communication beyond 5G.

Optical-Based Device Research Targets High-Speed Communication

Ken Paramayudha from BRIN’s Telecommunications Research Center explained that his team is developing an optical-based sub-terahertz device for future telecommunications.

“Telecommunication technology will continue to advance and move toward 6G, where data speed requirements may reach up to one hundred times faster than 5G,” he said.

Ken highlighted challenges in designing devices that can generate sub-terahertz signals effectively and sustainably.

He stated that one method uses difference frequency generation (DFG) with nonlinear optical materials integrated into a rectangular waveguide.

“This method can produce continuous wave signals and operate at room temperature,” Ken explained.

Waveguide Design Strengthens Signal Generation Efficiency

The research produced a device capable of generating signals up to 100 GHz, which Ken described as an important early step toward sub-terahertz implementation.

Through resonance-based design and CST simulation, he showed that combining photonic and microwave technology can improve signal amplification efficiency.

“This device can be applied for high-speed optical-electrical conversion and fiber-optic-based radio transmitters,” he said.

Ken stressed the importance of material innovation and system integration in developing future telecommunications devices.

Cloud Intelligence Research Supports 6G Networks

Arief Indra Irawan, a PhD student at Okayama University, discussed privacy processing in service function chaining (SFC) within multi-domain virtual networking as part of efforts toward intelligent cloud communication for 6G.

“Network virtualization technology is now an important foundation for the efficiency of telecommunication systems. With virtual networks, infrastructure becomes more flexible because each service can be arranged based on application needs,” Arief said.

DRL Approach Enhances Virtual Network Decision-Making

Arief explained that deep reinforcement learning (DRL) helps determine network function placement so the system can make autonomous and adaptive decisions.

“This is important because 6G requires full-dimensional multi-access connectivity that integrates land, air, and satellite. Network decisions must be intelligent because DRL can perform long-term optimization based on operational environments,” he said.

PHOTO: FREEPIK

This article was created with AI assistance.