Leading scientists in the field predict that lithium niobate chips, which are extremely thin, will surpass silicon chips in light-based technologies. These chips have a wide range of potential applications, from detecting ripe fruit from a distance on Earth to guiding navigation on the Moon. Acco
Dr. Andy Boes led this team of global experts to review lithium niobate’s capabilities and potential applications in the journal Science.in the United States, is working with industry to make navigation systems that are planned to help rovers drive on the Moon later this decade.
By detecting tiny changes in laser light, the lithium-niobate chip can be used to measure movement without needing external signals, according to Mitchell. “Our lithium niobate chip technology is also flexible enough to be rapidly adapted to almost any application that uses light,” Mitchell said. “Silicon was the material of choice for electronic circuits, but its limitations have become increasingly apparent in photonics.
“Photonic circuits are printed into the lithium niobate layer, which are tailored according to the chip’s intended use. A fingernail-sized chip may contain hundreds of different circuits,” he said.The team is working with the Australian company Advanced Navigation to create optical gyroscopes, where laser light is launched in both clockwise and anticlockwise directions in a coil of fiber, Mitchell said.
“Gas emitted by ripe fruit is absorbed by light in the mid-infrared part of the spectrum,” Mitchell said.
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