Chip-Scale Dual-Comb Spectroscopy Could Be Used In The Field

A research team has put two frequency comb generators on a single millimeter-size chip, miniaturizing the dual comb and thus making it portable enough to perform sensing and spectroscopy in field environments in real time. Researchers from Columbia University used a single laser to simultaneously generate two microresonator combs on the same chip, reducing complexity and removing the need for complicated electronics.

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