Active mid-infrared ring resonators are demonstrated, integrating quantum cascade lasers (QCLs) with directional couplers to enable electrical control of resonant frequency, quality factor, coupling regime, and coupling coefficient. These resonators can function as tunable filters, nonlinear frequency converters, or frequency comb generators, depending on their operating conditions. The integration of multiple active resonators and waveguides in arbitrary configurations allows the development of mid-infrared active photonic integrated circuits for spectroscopy, communication, and microwave generation. The devices operate in the mid-infrared range (3–12 μm), specifically around 8.2 μm, and utilize QCL gain regions for amplification. The ability to tune the complex refractive index enables control over resonance frequency and coupling strength. The resonators can be operated in different coupling regimes, such as critical coupling for sharp notch filters or overcoupling for phase modulators. The devices also show potential for applications in frequency comb generation, with the ability to produce self-starting frequency combs. The integration of active components with passive waveguides allows for high power output and efficient light coupling. The demonstrated technology offers a versatile platform for mid-infrared photonic applications, including optical communication, spectroscopy, and frequency generation. The results highlight the potential of active ring resonators in enabling reconfigurable photonic circuits with high performance and functionality.Active mid-infrared ring resonators are demonstrated, integrating quantum cascade lasers (QCLs) with directional couplers to enable electrical control of resonant frequency, quality factor, coupling regime, and coupling coefficient. These resonators can function as tunable filters, nonlinear frequency converters, or frequency comb generators, depending on their operating conditions. The integration of multiple active resonators and waveguides in arbitrary configurations allows the development of mid-infrared active photonic integrated circuits for spectroscopy, communication, and microwave generation. The devices operate in the mid-infrared range (3–12 μm), specifically around 8.2 μm, and utilize QCL gain regions for amplification. The ability to tune the complex refractive index enables control over resonance frequency and coupling strength. The resonators can be operated in different coupling regimes, such as critical coupling for sharp notch filters or overcoupling for phase modulators. The devices also show potential for applications in frequency comb generation, with the ability to produce self-starting frequency combs. The integration of active components with passive waveguides allows for high power output and efficient light coupling. The demonstrated technology offers a versatile platform for mid-infrared photonic applications, including optical communication, spectroscopy, and frequency generation. The results highlight the potential of active ring resonators in enabling reconfigurable photonic circuits with high performance and functionality.