India’s First Quantum Key Distribution (QKD) Over Multi-Core Fibre

In a groundbreaking development, the Centre for Development of Telematics (C-DOT), in collaboration with Sterlite Technologies Ltd. (STL), has successfully tested India’s first Quantum Key Distribution (QKD) transmission over a 4-core Multi-Core Fibre (MCF). This achievement marks a significant leap forward in India’s efforts to establish a secure and cost-effective national quantum communication network.

Key Highlights

  • First in India: Successful demonstration of QKD over a 4-core Multi-Core Fibre — a national first.
  • Partners: Joint initiative between C-DOT (India’s telecom R&D center under the DoT) and Sterlite Technologies Ltd. (a global optical networking leader).
  • Distance Achieved: QKD transmission tested and sustained over a distance exceeding 100 km.

Core Utilization

  • One core: Dedicated to QKD (quantum signal).
  • Remaining three cores: Used to carry high-speed classical data traffic simultaneously.

Significance of MCF

  • Allows physical separation of quantum and classical signals.
  • Enables simultaneous transmission without interference.
  • Reduces infrastructure and fibre deployment costs.

Other Info

  • Technology Approval: C-DOT’s QKD systems have received approval from the Telecommunication Engineering Centre (TEC).
  • Security and Efficiency: Demonstrates that quantum-secured communication can co-exist with conventional data traffic on a single optical fibre.
  • Public-Private Collaboration: This success reflects the strength of collaboration between public R&D and private enterprise in India’s digital growth.

Organizations Involved

C-DOT (Centre for Development of Telematics)

  • Premier R&D center under the Department of Telecommunications (DoT).
  • Focuses on indigenous telecom technology.
  • Developed QKD systems approved by TEC.

Sterlite Technologies Ltd. (STL)

  • Global leader in optical fibre, connectivity, and digital networks.
  • Developed indigenously manufactured Multi-Core Fibre.
  • Uses Space Division Multiplexing for ultra-high data capacity.
Summary/Static Details
Why in the news? India’s First Quantum Key Distribution (QKD) Over Multi-Core Fibre
Achievement India’s 1st QKD transmission over Multi-Core Fibre (MCF)
Organizations Involved C-DOT & Sterlite Technologies Ltd. (STL)
Fibre Type 4-core Multi-Core Fibre
Transmission Distance Over 100 km
Classical High-Speed Data Channels 3 cores
Benefits Cost-saving, simultaneous QKD and data transmission, secure communication
Technology Approval QKD systems approved by TEC (DoT)

Shivam

Recent Posts

Top-5 Dragon Fruit Producing Countries in the World 2025

Dragon Fruit, also known as pitaya, is a colorful tropical fruit with a sweet taste…

10 hours ago

From Where is Brahmaputra River Originate? Know All About Brahmaputra River

The Brahmaputra River System is one of the biggest and most important river systems in…

11 hours ago

Kumar Mangalam Birla Honoured with USISPF Global Leadership Award 2025

Kumar Mangalam Birla, Chairman of the Aditya Birla Group, has been conferred with the Global…

12 hours ago

G7 Summit 2025: Key Highlights, Participants, and India’s Absence

The 51st G7 Summit will be held from June 15 to 17, 2025, in Kananaskis,…

12 hours ago

Uttar Pradesh Approves 20% Police Reservation for Ex-Agniveers

In a landmark decision aimed at supporting the reintegration of military-trained youth into civil services,…

12 hours ago

OECD Cuts, UBS Lifts India’s FY26 Growth Forecast: A Tale of Two Outlooks

In a fresh update on India’s economic outlook, the Organisation for Economic Co-operation and Development…

12 hours ago