India has made a significant leap in radar technology with the Defence Research and Development Organisation (DRDO) developing a cutting-edge system that could redefine the country’s defence capabilities. This revolutionary advancement comes in the form of a photonic radar, which uses light waves for surveillance instead of conventional radio waves.
The DRDO is currently evaluating the operational efficiency and limitations of the system, marking a major milestone in indigenous technological development. This breakthrough is poised to bring a transformative change in India’s defence architecture.
Traditional radar systems operate by emitting radio waves to detect objects. However, these systems face challenges in identifying stealth aircraft, which are designed to evade or absorb such signals. Photonic radars, on the other hand, offer a game-changing solution, they are capable of detecting even fifth-generation stealth fighter jets with high precision.
These radars can also detect very small drones, stealth missiles, and other low-signature aerial threats that often go undetected by traditional systems. One of the most notable advantages of photonic radars is their resistance to electronic jamming, a vulnerability in existing radar systems. Currently, only a few countries in the world possess this advanced capability.
Photonic radars boast superior detection capabilities in all weather conditions. They offer high-speed, accurate tracking of any object, even in the most adverse environments. Another key benefit is their low power consumption. These systems utilise electromagnetic waves, including infrared light, which falls outside the visible optical spectrum.
At present, the United States and China lead global efforts in photonic radar technology, with Israel also making significant investments. According to experts, the difference between traditional and photonic radars is comparable to capturing an image with a blurry lens versus one with a 4K high-definition camera.
India’s new photonic radars are currently undergoing rigorous testing across various climatic zones. Trials are being conducted in high-altitude regions like Ladakh, maritime zones, and the harsh desert environment of the Thar. These evaluations aim to ensure their functionality and adaptability across India’s diverse operational theatres.
If the trials prove successful, these next-generation radars will be integrated into frontline platforms such as the Sukhoi-30 MKI, Tejas, and Rafale fighter jets. They are also expected to enhance the capabilities of air defence systems deployed along India’s borders.
Meanwhile, India’s indigenously developed Gallium Nitride-based Active Electronically Scanned Array (AESA) radars, Uttam and Virupaksha, are already being inducted into the Indian armed forces. However, photonic radar technology is expected to become the spearhead of India’s future air and missile defence systems.
The photonic radar system is being developed by the Electronics and Radar Development Establishment (LRDE) in Bengaluru, under the aegis of DRDO. While an official name has not yet been finalised, the development is being supported by contributions from the Indian private sector, signalling a robust public-private collaboration in high-end defence technology.
India’s foray into photonic radar technology signifies not just a technological breakthrough, but a strategic edge in securing its airspace in the coming decades.
