Mode locking
Way to produce very short laser bursts / From Wikipedia, the free encyclopedia
Dear Wikiwand AI, let's keep it short by simply answering these key questions:
Can you list the top facts and stats about Mode-locking?
Summarize this article for a 10 year old
SHOW ALL QUESTIONS
Mode locking is a technique in optics by which a laser can be made to produce pulses of light of extremely short duration, on the order of picoseconds (10−12 s) or femtoseconds (10−15 s). A laser operated in this way is sometimes referred to as a femtosecond laser, for example, in modern refractive surgery. The basis of the technique is to induce a fixed phase relationship between the longitudinal modes of the laser's resonant cavity. Constructive interference between these modes can cause the laser light to be produced as a train of pulses. The laser is then said to be "phase-locked" or "mode-locked".
For other uses, see Arnold tongue and Inharmonicity § Mode-locking.
This article includes a list of references, related reading, or external links, but its sources remain unclear because it lacks inline citations. (December 2021) |