India's emerging photonics and quantum-communication technology sector received attention at India Mobile Congress 2026 as domestic deep-tech company Nav Wireless Technologies Pvt. Ltd., operating under the name NavTech, unveiled its OpticSpectra 10G QKD optical wireless communication system.
The platform is designed to combine Free Space Optical (FSO) communication with Quantum Key Distribution (QKD), bringing high-capacity wireless data transmission and quantum-based cryptographic key exchange into a single communication system.
Editorial Insight
Key Highlights
Important points readers should notice.
Issue/Event: NavTech unveiled its OpticSpectra 10G QKD optical wireless communication system at India Mobile Congress 2026.
Location: India
Authority/Organisation: Nav Wireless Technologies Pvt. Ltd. (NavTech), with the unveiling attended by TRAI Chairman Anil Kumar Lahoti.
Action Taken: The company introduced a system combining Free Space Optical communication with Quantum Key Distribution capability.
Impact: The technology is designed to support high-speed and security-focused communication applications in telecom, defence and strategic infrastructure.
According to the company's announcement, OpticSpectra 10G QKD is designed to deliver data speeds of up to 10 gigabits per second (Gbps) over optical wireless links of up to five kilometres.
The system was unveiled at IMC 2026 in the presence of Anil Kumar Lahoti, Chairman of the Telecom Regulatory Authority of India (TRAI).
The company is positioning the technology for telecom infrastructure, defence communication networks, strategic facilities and other environments requiring high-capacity and security-sensitive connectivity.
Editorial Analysis
Why This Matters
Modern communication networks require both high data capacity and stronger protection against cyber threats. Technologies combining optical wireless communication with quantum-based key distribution could offer additional options for connecting sensitive facilities and locations where traditional fibre infrastructure is difficult to establish. For India, the development of indigenous photonics and quantum communication products may also support domestic research, technology manufacturing and specialised telecommunications capabilities. However, the long-term importance of OpticSpectra 10G QKD will depend on independent performance testing, successful integration, reliability under different weather conditions and actual customer deployments.
How the technology works
OpticSpectra 10G QKD combines two technologies: Free Space Optical communication and Quantum Key Distribution.
Free Space Optical communication transfers information through highly focused beams of light travelling through the air between two points. Unlike conventional fibre-optic connections, it does not require a physical fibre cable across the entire communication route.
This approach could be useful in locations where laying fibre is difficult, expensive or time-consuming, such as between buildings, across certain geographical obstacles or at remote facilities.
The second component, Quantum Key Distribution, uses principles of quantum physics to generate and exchange cryptographic keys.
These keys can be integrated into encryption systems to strengthen communication security. QKD is not itself a complete encryption system, and its effectiveness depends on the implementation, equipment and integration with the wider network.
Potential applications in telecom and defence
NavTech is targeting several areas where high-speed communication and secure key exchange are important.
For telecom operators, optical wireless links could provide an alternative or complementary connectivity option where fibre infrastructure is difficult to extend.
For defence and strategic networks, the system is being positioned for communication requirements involving secure key distribution, rapid deployment and network resilience.
The company also sees potential applications in strategic facilities and mission-critical communication infrastructure.
However, these are the intended application areas described by the company. The announcement does not confirm that the system has already been deployed across telecom networks or operational defence installations.
India's growing photonics and quantum technology ecosystem
The unveiling comes as India continues to develop domestic capabilities in photonics, optical communication and quantum technologies.
NavTech says OpticSpectra 10G QKD is part of its broader effort to develop optical, laser and photonics-based communication solutions in India.
The company has described the product as an effort to move indigenous research and development towards practical communication systems.
The unveiling at IMC 2026 also highlights growing interest in communication technologies that can complement conventional fibre, radio-frequency and satellite networks.
What remains to be demonstrated
The company's announcement provides design specifications, but does not disclose independent test results establishing sustained 10 Gbps performance over the full five-kilometre distance.
Further information about field trials, environmental performance, QKD key-generation rates, interoperability, commercial availability and customer deployments will be important in assessing the system's practical capabilities.
Optical wireless communication can also be affected by weather and atmospheric conditions, making real-world testing an important step before large-scale adoption.
