Frequency Combs

Learn about the latest developments in frequency combs, a type of laser that can produce precise light frequencies used in a variety of applications.

In April 2015 the HARPS laser frequency comb was installed on the HARPS planet-finding instrument on the ESO 3.6-metre telescope at the La Silla Observatory in Chile after completion of an intense first commissioning phase. The increase in accuracy made possible by this new installation should in future allow HARPS to be able to detect Earth-mass planets in Earth-like orbits around other stars for the first time. This picture shows a HARPS spectrum of the light wavelengths from the two laser frequency combs that that were tested.

The Science Behind Laser Frequency Combs

February 6, 2023February 26, 2023 Physics

Since the invention of lasers, scientists have been exploring ways to improve their precision and accuracy. One such development…

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