Researchers from the University of Milano-Bicocca and the National Institute of Nuclear Physics in Italy, along with collaborators from other institutions, have been exploring the potential of Power over Fiber (PoF) technology in cryogenic environments. This innovative approach delivers electrical power through laser light transmitted via fiber optic cables, offering several advantages such as spark-free operation and immunity to electromagnetic interference.
In a recent study published in the journal Review of Scientific Instruments, the team developed a single-laser input line system designed to power electronic amplifiers and photosensors at extremely low temperatures. Unlike previous solutions, their system allows for the tuning of the photosensor bias by adjusting the input laser power. This flexibility could be particularly useful in applications where precise control of sensor parameters is required.
The researchers demonstrated the operation of the optical converter at temperatures as low as 4.6 Kelvin, which is approximately -268.6 degrees Celsius. This breakthrough opens up new possibilities for using PoF technology in a wider range of applications, including those in extremely cold environments. The ability to power sensors and electronic devices at such low temperatures could be beneficial for various energy sector applications, such as monitoring equipment in cryogenic energy storage systems or powering sensors in liquefied natural gas (LNG) facilities.
One of the key advantages of PoF technology is its robustness in hostile environments. This makes it particularly suitable for use in the energy sector, where equipment often has to operate in harsh conditions. For example, PoF could be used to power sensors in offshore wind turbines, where exposure to saltwater and high winds can cause significant wear and tear on traditional power systems.
Overall, the research highlights the potential of PoF technology to revolutionize the way power is delivered to sensors and electronic devices in the energy sector. By enabling spark-free operation, eliminating power line noise, and providing immunity to electromagnetic interference, PoF could help to improve the reliability and efficiency of energy systems. As the technology continues to develop, it is likely that we will see an increasing number of applications in the energy sector and beyond.
This article is based on research available at arXiv.