The paper presents the integration of mid-infrared ring resonators and directional couplers, incorporating a quantum cascade active region in the waveguide core. This integration enables electrical control of the resonant frequency, quality factor, coupling regime, and coupling coefficient. The device can function as a tunable filter, nonlinear frequency converter, or frequency comb generator, depending on its operating point. The demonstration is not wavelength-specific and can be extended to the entire mid-infrared range. The active ring resonators, based on QCL gain regions, operate around 8.2 μm, in the atmospheric transparency window. The ability to tune these parameters allows for the implementation of integrated ring resonators with control over the resonance frequency and coupling strength. The devices exhibit high output power, above 10 mW at room temperature, and can be used as standalone optical components for filtering, frequency-selective phase delay, and resonant amplification. The paper also discusses the potential of these devices in highly agile mid-IR active photonic integrated circuits, including wavelength-tunable external cavity lasers and femtosecond mid-IR pulse generators.The paper presents the integration of mid-infrared ring resonators and directional couplers, incorporating a quantum cascade active region in the waveguide core. This integration enables electrical control of the resonant frequency, quality factor, coupling regime, and coupling coefficient. The device can function as a tunable filter, nonlinear frequency converter, or frequency comb generator, depending on its operating point. The demonstration is not wavelength-specific and can be extended to the entire mid-infrared range. The active ring resonators, based on QCL gain regions, operate around 8.2 μm, in the atmospheric transparency window. The ability to tune these parameters allows for the implementation of integrated ring resonators with control over the resonance frequency and coupling strength. The devices exhibit high output power, above 10 mW at room temperature, and can be used as standalone optical components for filtering, frequency-selective phase delay, and resonant amplification. The paper also discusses the potential of these devices in highly agile mid-IR active photonic integrated circuits, including wavelength-tunable external cavity lasers and femtosecond mid-IR pulse generators.