India Unveils First Indigenous High-Precision Diode Laser

Source: PIB

Subject: Science and Technology

Context: India launched its first indigenous high-precision diode laser engineered for quantum communication and computing. It marks a major step in India’s capability to build quantum-grade hardware.

About India Unveils First Indigenous High-Precision Diode Laser:

What it is?

• A compact, high-precision diode laser system engineered for quantum technologies, scientific research, higher-education laboratories, and cutting-edge industrial applications.

• It provides ultra-stable, tunable and long-duration laser output required for quantum experiments and secure communication systems.

Developed by: Prenishq Pvt. Ltd., a deep-tech startup and spin-off from IIT Delhi

• Supported by the National Quantum Mission (NQM)

• To create an indigenous quantum-grade diode laser for secure communication, quantum computing, and high-precision scientific research.

• To strengthen India’s quantum ecosystem and enable quantum-safe digital infrastructure.

Key Features:

• Ultra-Narrow Linewidth & High Beam Quality: Ensures sharp, stable beams ideal for high-resolution quantum sensing and communication tasks.

• Long-Term Frequency & Power Stability: Maintains precise performance over long durations, reducing recalibration needs in labs and field setups.

• Wide Wavelength Range (UV to Near-IR): Supports multiple quantum systems and scientific instruments requiring different operational wavelengths.

• Rugged & Temperature-Controlled: Designed to operate reliably in Indian climatic conditions, ensuring stable quantum output.

• Compact, Lightweight & Low-Power: Portable, energy-efficient architecture makes deployment easy in both labs and mobile platforms.

• Plug-and-Play Integration: Simple setup with minimal configuration enables fast adoption by researchers and educational institutions.

• Free-Space & Fiber-Coupled Output: Flexible delivery options allow use in both optical table experiments and long-distance communication links.

Applications:

• Quantum Communication:

• QKD Backbone: Provides stable, coherent light required for generating quantum keys used in ultra-secure communication. Quantum-Safe Transactions: Enables banks, defence and telecom systems to protect data against attacks from future quantum computers.

• QKD Backbone: Provides stable, coherent light required for generating quantum keys used in ultra-secure communication.

• Quantum-Safe Transactions: Enables banks, defence and telecom systems to protect data against attacks from future quantum computers.

• Photonic Quantum Computing:

• Photon Qubit Control: Generates precise laser pulses to encode, manipulate, and read photonic qubits in quantum processors. Error-Resilient Operations: Low noise and stable frequency improve gate fidelity, reducing errors in optical quantum computation.

• Photon Qubit Control: Generates precise laser pulses to encode, manipulate, and read photonic qubits in quantum processors.

• Error-Resilient Operations: Low noise and stable frequency improve gate fidelity, reducing errors in optical quantum computation.

• Scientific & Industrial Research:

• Precision Spectroscopy: Offers narrow, stable beams for analysing atomic and molecular structures at extremely high resolution. Atomic Clocks & Metrology: Supports next-gen optical clocks and ultra-precise timekeeping, improving navigation and communication systems.

• Precision Spectroscopy: Offers narrow, stable beams for analysing atomic and molecular structures at extremely high resolution.

• Atomic Clocks & Metrology: Supports next-gen optical clocks and ultra-precise timekeeping, improving navigation and communication systems.