New Delhi — A startup incubated at IIT Delhi has demonstrated an indigenous diode laser designed for applications in quantum communication and quantum computing, marking a new development in India’s efforts to build domestic capability in quantum hardware.
Prenishq Pvt Ltd, which is backed by the National Quantum Mission (NQM), has built what it describes as a high-precision and compact diode laser that can be used in quantum research laboratories and higher-education institutes. The company said the device can be integrated into scientific and industrial systems that require precise wavelength control.
According to the company, the laser can operate across a wide range of wavelengths from ultraviolet to near-infrared, which makes it suitable for several quantum optical experiments. Quantum communication uses the laws of quantum physics to secure data transfer, and precision lasers are one of the core components required to enable such systems.
The developers said the laser may have future applications in fields such as financial services, where quantum-safe communication is being explored to protect transaction and customer data. They also noted potential use cases in quantum-based chemical analysis and drug research, which require controlled light sources.
The diode laser includes built-in driver electronics for stabilising output power and temperature during operation. The device can be used in free-space beam setups or with optical fibres, and the company said it is designed for integration into both teaching and research environments.
Part of efforts to expand domestic quantum hardware capability
India launched the National Quantum Mission in 2023 to accelerate the development of quantum technologies including computing, communication, sensing and materials.
While several research groups have been working on software and protocols, experts say the availability of indigenous hardware has been limited.
Industry observers note that quantum hardware imports can be expensive and procurement often involves long lead times.
Domestic capability in components such as precision lasers, quantum-grade sensors and cryogenic systems is considered important for the development of larger research programmes.
The startup said the development was supported by funding and incubation programmes including DST-NIDHI PRAYAS, the National Mission on Interdisciplinary Cyber-Physical Systems, the National Quantum Mission, I-HUB Quantum Technology Foundation, IISER Pune, the Foundation for Innovation and Technology Transfer (IIT Delhi), BITS BioCyTiH Foundation and TBI-KIET.
Officials said that the launch of the diode laser reflects ongoing efforts to strengthen India’s supply chain for quantum hardware. They added that continued increments in capability would be needed as global competition in quantum technology increases.
