Tunable filters

Tunable filters are adjustable electronic or optical devices that selectively pass specific frequencies or wavelengths of signals while blocking others. Think of them like a radio tuner that allows you to choose a particular station; similarly, tunable filters can be fine-tuned to isolate precise signals from a mixture. They’re used in communication systems, imaging, and sensors to improve clarity and performance by dynamically targeting the desired frequency range, providing flexibility in various applications without needing to replace hardware.