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IMAGE: PhD Student Óskar Bjarki Helgason demonstrates the chip and the experimental setup for generating the game changing microcomb.
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Credit: Photo: Mia Halleröd Palmgren, Collage: Yen Strandqvist /Chalmers
Tiny photonic devices could be used to find new exoplanets, monitor our health, and make the internet more energy efficient. Researchers from Chalmers University of Technology, Sweden, now present a game changing microcomb that could bring advanced applications closer to reality.
A microcomb is a photonic device capable of generating a myriad of optical frequencies - colours - on a tiny cavity known as microresonator. These colours are uniformly distributed so the microcomb behaves like a 'ruler made of light'. The device can be used to measure or generate frequencies with extreme precision.