Mid-infrared dual-comb QCLs integrated with beam combiner based on Ge-on-Si platform

Dongbo Wang,Harindra Kumar Kannojia,Pierre Jouy, Etienne Giraud,Geert Van Steenberge,Bart Kuyken

2023 IEEE Silicon Photonics Conference (SiPhotonics)（2023）

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摘要

Mid-infrared dual-comb spectroscopy, a powerful fast and broadband technique involves two combs that are mixed by free-space beam combining and generating beat signal. Here, we demonstrate for the first time on-chip QCLs integrated with combiners by leveraging Ge-on-Si platform and 3D self-alignment flip-chip assembly.

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关键词

Silicon Photonics,QCL,frequency comb,mid-infrared integration,flip-chip

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