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Frequency Comb Research Advances Using Tunable Diode Lasers

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Frequency Comb Research Advances Using Tunable Diode Lasers

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Microcomb research continues to advance as the miniaturized comb offers many of the same advantages of traditional frequency combs, with wider mode spacing, a much smaller, micrometer-size platform, and the potential for on-chip compatibility. As on-chip microresonator engineering and frequency comb techniques continue to evolve, microcombs will become increasingly accessible tools and novel applications will come within reach. Microcomb-based molecular spectroscopy shows great promise though several challenges remain, one of which is the limited choice of comb sources in the mid-IR and UV spectral ranges. With the first microcomb demonstrated using New Focus ECDL technology, however, a recent push into new wavelength regimes may help advance microcomb research and bring it even closer to new cutting-edge applications.

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