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arXiv · 2010.07062

Simple Single-Section Diode Frequency Combs

Matthew. W. Day·Mark Dong·Bradley C. Smith·Rachel C. Owen·Grace C. Kerber·Taigao Ma·Herbert G. Winful·Steven T. Cundiff
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Abstract

Frequency combs, broadband light sources whose spectra consist of coherent, discrete modes, have become essential in many fields. Miniaturizing frequency combs would be a significant advance in these fields, enabling the deployment of frequency-comb based devices for diverse measurement and spectroscopy applications. We demonstrate diode-laser based frequency comb generators. These laser diodes are simple, electrically pumped, inexpensive and readily manufactured. Each chip contains several dozen diode-laser combs. We measure the time-domain output of a diode frequency comb to reveal the underlying frequency dynamics responsible for the comb spectrum, conduct dual comb spectroscopy of a molecular gas with two devices on the same chip, and demonstrate that these combs can be battery powered.

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Matthew. W. Day, Mark Dong, Bradley C. Smith, Rachel C. Owen, Grace C. Kerber, Taigao Ma, Herbert G. Winful, Steven T. Cundiff. 2020-10-14. Simple Single-Section Diode Frequency Combs. https://doi.org/10.1063/5.0033211

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