Abstract
Quantum-cascade-laser-based mid-infrared (mid-IR, wavelengths in the range of approximately 3 microns to 15 microns) Photonic Integrated Circuits (PICs) on the InP platform allow for monolithic integration of high-power laser sources, passive and active photonic elements, and low-loss optical interconnects with transparency in the entire mid-IR spectral region. We will report on our progress in developing InP-based mid-IR PICs, including characterization of linear and nonlinear optical properties of InP/InGaAs waveguides in the mid-IR spectral range, demonstration of low-loss passive mid-IR photonic components, such as ring resonators and wavelength multiplexers, and monolithic integration of these passive components with the active devices.
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