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Creators/Authors contains: "Agarwal, Anu"

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  1. ; ; ; ; ; ; ; ; ; ; et al (, SPIE)
    Gregory, Groot; Heinz-Garcia, Jonathan (Ed.)
    Free, publicly-accessible full text available September 18, 2026
  2. ; ; ; ; ; ; ; ; ; ; et al (, Optical Materials Express)
    Mid-infrared photonic integrated circuits (PICs) that combine on-chip light sources with other optical components constitute a key enabler for applications such as chemical sensing, light detection, ranging, and free-space communications. In this paper, we report the monolithic integration of interband cascade lasers emitting at 3.24 µm with passive, high-index-contrast waveguides made of chalcogenide glasses. Output from the chalcogenide waveguides exhibits pulsed peak power up to 150 mW (without roll-over), threshold current density 280 A/cm2, and slope efficiency 100 mW/A at 300 K, with a lower bound of 38% efficiency for coupling between the two waveguides. These results represent an important step toward the realization of fully integrated mid-infrared PICs. 
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