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Photonics Dictionary

mode locking

Mode locking is a technique used in optics and laser physics to generate short pulses of light with extremely high peak powers. In mode locking, the phases of different longitudinal modes (specific frequencies or wavelengths) of a laser cavity are synchronized to produce a pulse train with a very short pulse duration. This synchronization is typically achieved by introducing an element such as a saturable absorber or a modulator into the laser cavity. Mode-locked lasers are crucial in various applications including telecommunications, metrology, spectroscopy, and material processing.
 
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