Mode-locked lasers

Mode-locked lasers are advanced devices that generate extremely short and stable pulses of light, often measured in picoseconds or femtoseconds. They work by synchronizing (or locking) the phases of multiple longitudinal modes within the laser cavity, causing these modes to interfere constructively at regular intervals. This precise timing produces a rapid train of laser pulses rather than continuous light. Mode locking is crucial in applications like high-speed communications, medical imaging, and scientific research, where precise, high-intensity light pulses are essential for detailed measurements and data transmission.