Integrated dual optical frequency comb source

A monolithically integrated dual-channel optical frequency comb source is demonstrated in this paper. Three lasers are integrated on a single chip using a regrowth-free fabrication process in a master-slave-slave configuration. The master laser’s power is split equally using a 1x2 multimode interfer...

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Published inOptics express Vol. 28; no. 11; pp. 16900 - 16906
Main Authors Alexander, Justin K., Caro, Ludovic, Dernaika, Mohamad, Duggan, Shane P., Yang, Hua, Chandran, Satheesh, Martin, Eamonn P., Ruth, Albert A., Anandarajah, Prince M., Peters, Frank H.
Format Journal Article
LanguageEnglish
Published 25.05.2020
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Summary:A monolithically integrated dual-channel optical frequency comb source is demonstrated in this paper. Three lasers are integrated on a single chip using a regrowth-free fabrication process in a master-slave-slave configuration. The master laser’s power is split equally using a 1x2 multimode interference coupler and injection locks the two slave lasers. The slave lasers are gain-switched to produce dual optical frequency combs at 4.1 GHz and 5 GHz. To the best of our knowledge, this is the first demonstration of a dual optical frequency comb source with all light sources monolithically integrated in a photonic integrated circuit (PIC).
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ISSN:1094-4087
1094-4087
DOI:10.1364/OE.384706