Indian deep-tech company Nav Wireless Technologies Pvt. Ltd. (NavTech) has unveiled OpticSpectra 10G QKD, an India-developed Free Space Optical (FSO) communication system that combines data speeds of up to 10 Gbps with Quantum Key Distribution (QKD) capability. The system was unveiled at India Mobile Congress (IMC) 2026 in New Delhi on October 31, and it is designed for optical wireless links of up to 5 km, aimed primarily at telecom, defence and other security-sensitive communication environments where high-capacity connectivity and secure key exchange are increasingly important.
The announcement arrives at a moment when communication networks are being asked to do two things at once: carry far more data, and protect that data more strongly. NavTech is positioning OpticSpectra 10G QKD as an answer to both demands in a single platform, built in India, for links where laying fibre may be difficult, slow or impractical.
Key Takeaways
- NavTech unveiled OpticSpectra 10G QKD at India Mobile Congress 2026 on October 31.
- The India-developed system is designed for data speeds of up to 10 Gbps over optical wireless links of up to 5 km.
- It combines Free Space Optical communication with Quantum Key Distribution capability, aimed at telecom, defence and security-sensitive networks.
What OpticSpectra 10G QKD Is Designed to Do
Free Space Optical communication transmits data between two points using highly directional beams of light rather than a physical fibre connection across the complete link. In practical terms, that means two sites with a clear line of sight can be connected by light, without waiting for trenches to be dug or cables to be laid between them. For telecom networks, the company says the system can support high-capacity optical connectivity where extending fibre may be difficult or time-consuming.
Quantum Key Distribution is designed to enable the generation and exchange of cryptographic keys using quantum principles, adding a security-oriented capability to the communication architecture when correctly implemented and integrated. Keys are the secret values that lock and unlock encrypted communications, so how they are created and shared matters as much as the encryption itself. By bringing the two technologies together, OpticSpectra 10G QKD is intended to support applications where both data capacity and communication security matter.
NavTech sees potential use in telecom infrastructure, defence networks, strategic facilities and other mission-critical links. For defence and strategic networks, the company is positioning the platform for communication requirements that place greater emphasis on secure key distribution, rapid deployment and network resilience. That combination — speed plus a quantum-based approach to key exchange — is the core of the pitch: a link that can be set up quickly, carry a large amount of data, and treat the security of its keys as a first-order design question rather than an afterthought.
The next phase of communication infrastructure will need to address capacity and security together.
An Indian Platform, Unveiled With the Regulator Present
The system was unveiled at IMC 2026 in the presence of Anil Kumar Lahoti, Chairman of the Telecom Regulatory Authority of India (TRAI), underscoring the growing policy and industry interest around indigenous optical and next-generation secure communication technologies. The presence of the telecom regulator at a product unveiling is itself a signal: this is not being presented as a laboratory curiosity, but as part of a wider conversation about what India’s digital infrastructure should look like.
Lahoti said India’s progress in indigenous optical wireless communication and quantum technologies reflects the growing capabilities of the domestic technology ecosystem, adding that innovations bringing together high-speed connectivity, secure communications and advanced photonics have the potential to contribute meaningfully to India’s digital infrastructure and technological self-reliance. That framing matters, because it places OpticSpectra 10G QKD in a national story that has been running all year: building critical technology at home rather than importing it wholesale. India’s space programme made the same point this week, with ISRO’s successful NVS-03 navigation satellite launch strengthening the indigenous NavIC system.
OpticSpectra 10G QKD forms part of NavTech’s broader effort to develop advanced optical, laser and photonics-based communication technologies in India and move them from research and development into deployable systems for domestic and international markets. The company describes itself as an Indian deep-tech firm developing advanced optical communication technologies, including Free-Space Optical Communication (FSOC), visible light communication (VLC) and next-generation photonic communication solutions, focused on extending high-capacity connectivity beyond conventional fibre infrastructure for telecommunications, enterprise, defence, remote connectivity and other specialised applications.
- Designed for data speeds of up to 10 Gbps over optical wireless links of up to 5 km.
- Combines Free Space Optical communication with Quantum Key Distribution capability.
- Unveiled at India Mobile Congress 2026 in the presence of TRAI Chairman Anil Kumar Lahoti.
- Aimed at telecom infrastructure, defence networks, strategic facilities and mission-critical links.
- Developed in India by Nav Wireless Technologies Pvt. Ltd. (NavTech).
- Positioned as a complementary layer alongside fibre, radio-frequency and satellite networks.
Why Secure Optical Wireless Matters Now
As communication networks become more data-intensive and security-sensitive, telecom and strategic infrastructure operators are evaluating technologies that can strengthen both capacity and protection of critical communications. The security side of that equation has gained urgency through October: software supply-chain incidents have shown how quickly trust in a tool can break, as seen in the malicious Claude Code extension found on Cursor’s marketplace, and markets have spent the week repricing the AI build-out itself, with technology stocks sliding on AI spending worries. Against that backdrop, a system that treats key distribution as a core feature rather than a bolt-on is an easier story to tell to defence and telecom buyers.
NavTech believes QKD-enabled optical wireless systems can become one of the specialised building blocks within that broader transition. The company is developing its optical communication portfolio as a complementary layer alongside fibre, radio-frequency and satellite networks, with different systems addressing capacity, distance and security requirements. That is an important qualification: optical wireless is not being pitched as a replacement for fibre everywhere, but as an additional layer for places and situations where fibre is slow to reach, hard to protect, or simply the wrong tool for a rapid deployment.
Hardik Soni, Co-Founder and CTO of Nav Wireless Technologies, said the next phase of communication infrastructure will need to address capacity and security together, and that with OpticSpectra 10G QKD the objective is to combine high-speed optical wireless communication with advanced key-distribution capability in an India-developed platform for telecom, defence and strategic networks. He added that the company wants to take photonics technologies from Indian research and development into practical deployments, and that IMC gives it an important platform to demonstrate that transition from research to deployable deep-tech systems.
What to Watch Next
What to watch next is what the article has already set out: whether NavTech moves OpticSpectra 10G QKD from an IMC unveiling into practical deployments with telecom and defence users, whether the system performs at its designed 10 Gbps speed over links of up to 5 km in real-world conditions, and whether its QKD capability finds a place alongside fibre, radio-frequency and satellite networks as a complementary layer. The other test is whether India’s indigenous photonics push keeps producing deployable systems rather than demonstrations, and whether the policy interest shown at IMC 2026 turns into the kind of demand that sustains a domestic deep-tech supplier. Until those deployments arrive, OpticSpectra 10G QKD stands as a statement of intent: high-speed light, quantum-secured keys, and a platform developed in India for networks where both capacity and security matter.