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January 19, 2023

New on-chip laser frequency comb improves efficiency and bandwidth

A new on-chip laser frequency comb – a laser that emits multiple frequencies or colors of light simultaneously separated like the teeth on a comb -- combines a coupled resonator with an electro-optical frequency comb to improve the efficiency of frequency combs and improve the bandwidth.

[Research supported by U.S. National Science Foundation grant ECCS 1839197.]

Learn more in the Harvard SEAS news story New on-chip frequency comb is 100x more efficient. (Date of image: unknown; date originally posted to NSF Multimedia Gallery: Jan. 19, 2023)

Credit: Yiqing Pei/Harvard SEAS

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