Q-switch noun 2verb 1forms 3 noun2 •A device that causes Q-switching.Around 60-100 W is required to deflect a 60 W beam and hence the Q-switch has to be cooled. — 2003 •The process of Q-switching.Also, the appearance of Q-switch and ultra-short pulse technology made the peak power improve greatly, and the efficiency of doubling reached 70-80%. — 2012 verb1 •To use a Q-switch on (a laser).A variety of methods are available to Q-switch a fiber laser. Most of them are adaptations of those used to Q-switch bulk lasers. — 2001 formsQ-switched · Q-switching · Q-switches