The next-gen Photonic Chip to revolve the Photonic Industry
Researchers from University of Southampton have constructed a new technique to help produce more reliable and robust next-gen photonic chips. A photonic chip uses light instead of electricity and is being developed for the production of ultra-fast quantum computers with capabilities far beyond today’s devices. As the complexity of optical chips increases, testing such chips becomes more difficult.
Researchers have now developed a new method which will find out at which time the light in the chip is at which position. The technique called Ultrafast photo modulation spectroscopy (UPMS), uses ultraviolet laser pulses to change the refractive index of silicon in a tiny area on the photonic chip.
“Monitoring the transmission of the chip while the refractive index is locally changed gives a accurate picture of how the light flows through it. This allows testing of individual optical elements on the chip, a crucial step in the design optimization to ensure its unblemished operation,” explained lead researcher Roman Bruck from University of Southampton.
Because the changes induced by the technique are fully reversible, this testing method is non-destructive and after testing, the chip can be used for its proposed application, he added. The new research can change the potential of industrial testing in the pho-tonics industry.
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