India Develops Indigenous Multi-Channel Tunable Laser Systems for Quantum Technologies

RRI, which developed the foundational technology for these precision laser systems, has recently awarded the license for their production to nexAtom Research and Instruments.

India is on the verge of a significant technological advancement with the impending launch of its own multi-channel, tunable laser systems, which are critical for quantum optics laboratories. This breakthrough is spearheaded by nexAtom Research and Instruments, a spinoff from the Raman Research Institute (RRI), an autonomous institute under the Department of Science & Technology.

The new laser systems, designed to be both cost-effective and versatile, could revolutionize the field of quantum optics by lowering the high costs traditionally associated with precision laser systems. These platforms have broad applications in medicine, remote sensing, geo-mapping, and space exploration.

RRI, which developed the foundational technology for these precision laser systems, has recently awarded the license for their production to nexAtom Research and Instruments. This spinoff company is set to begin manufacturing the multi-channel, tunable laser system technology platforms. RRI has also filed a provisional patent in India for a "Standalone Laser System with Frequency Tunability and Precision Control."

This development is a part of India's ambitious National Quantum Mission (NQM), a Rs. 6,000 crore initiative launched last year. The NQM aims to establish a robust ecosystem for quantum technologies. The External Cavity Diode Lasers (ECDL), a type of tunable laser system, are crucial for quantum research and technology labs. They offer high precision and are integral to advancements in quantum communication, quantum technology, quantum systems, and metrology, all central themes of the NQM.

The journey towards this advanced laser system began in 2017, with nexAtom focusing on transitioning laser control electronics from analog to digital modes. "By customizing the mechanical assembly and reprogramming features, our system is adaptable to various end-user requirements. It can be used across multiple fields, including medicine, remote sensing, geo-mapping, space, and marine navigation, without the need for additional costly auxiliary systems," explained Subodh Vashist, Founder and System Design Expert at nexAtom.

The nexAtom laser systems can be purchased either as an integrated package or as a sub-system, offering a cost-effective solution. This initiative aims to set a precedent for academic institutions venturing into entrepreneurship within the quantum domain, as noted by Professor Sadiq Rangwala from RRI.

“This venture is a vital step towards establishing a high-end scientific ecosystem in India. The development of a future-compliant prototype laser system is crucial for supporting the NQM’s goals,” remarked Prof. Rangwala, who is also the Principal Technical Advisor to nexAtom.

The new laser systems build on the extensive work of RRI’s Quantum Interactions (QuaInt) lab, which has spent over two decades developing quantum technology. The lab’s approach has led to several products, including precision time taggers for quantum applications, ultra-fast seed fibre lasers for pulsed laser applications, and Q-switched fibre and diode lasers for metal 3D printing.

As India prepares to make substantial strides in quantum technology through the NQM, there is a growing need for a comprehensive ecosystem to support the development of customized lasers and associated instruments. This will also necessitate a skilled workforce of engineers and PhDs capable of working in interdisciplinary environments, according to Prof. Rangwala.

“Our goal is to develop high-quality, reliable laser systems and to build a skilled workforce that can support the burgeoning field of quantum technologies,” said Prof. Rangwala.