India Launches First High-Precision Diode Laser for Quantum Technologies
Context
India has developed its first indigenous high-precision diode laser designed for quantum communication, quantum computing and advanced scientific research. This milestone strengthens India’s capacity to build quantum-grade hardware and supports the broader objectives of the National Quantum Mission.
About the Indigenous High-Precision Diode Laser
What it is
A compact and high-precision diode laser engineered for use in quantum technologies, advanced research laboratories, higher education institutes and cutting-edge industrial applications.
It delivers ultra-stable, tunable and long-duration laser output essential for quantum experiments and secure communication systems.
Developed by Prenishq Pvt. Ltd., an IIT Delhi spin-off supported under the National Quantum Mission.
Aim
To enable the creation of a fully indigenous quantum-grade diode laser that can support secure quantum communication, quantum computing and high-precision scientific experimentation.
To strengthen India’s domestic quantum ecosystem and support the development of quantum-safe digital infrastructure.
Key Features
Ultra-narrow linewidth and high beam quality
Provides sharp, stable beams required for quantum sensing, high-resolution experiments and secure optical communication.
Long-term frequency and power stability
Ensures consistent laser performance over extended durations, reducing the need for frequent recalibration in labs and field deployments.
Wide wavelength range from UV to Near-IR
Supports diverse quantum systems and advanced scientific instruments that require different operational wavelengths.
Rugged and temperature-controlled design
Engineered to function reliably across Indian climatic conditions while maintaining stable quantum-grade output.
Compact, lightweight and low-power architecture
Facilitates easy deployment in laboratories, mobile quantum platforms and educational institutions.
Plug-and-play integration
Offers simple setup and minimal configuration time, enabling quick adoption across research and academic environments.
Free-space and fiber-coupled output
Provides flexibility for both optical-table quantum experiments and long-distance quantum communication links.
Applications
Quantum communication
Supports Quantum Key Distribution systems that require coherent, stable light for generating ultra-secure cryptographic keys.
Enables quantum-safe communication for sectors such as banking, defence and telecommunications.
Photonic quantum computing
Generates precise laser pulses needed to manipulate, encode and read photonic qubits.
Improves gate fidelity and reduces operational errors in quantum processors due to its frequency stability and low noise output.
Scientific and industrial research
Enables high-resolution spectroscopy for atomic and molecular analysis.
Aids in the development of advanced atomic clocks and metrology systems that enhance precision navigation and communication networks.
Conclusion
The launch of India’s first indigenous high-precision diode laser marks a significant advancement in domestic quantum technology capability. It strengthens India’s quantum research ecosystem, reduces dependence on imported quantum hardware and supports long-term goals of secure communication, advanced computing and scientific innovation under the National Quantum Mission.
Source : PIB