Definition of Q-switch in English:

Q-switch

noun

Physics
  • A means of suddenly increasing or decreasing the Q of a laser (usually the former, done in order to produce a single pulse of very high power).

verb

Physics
  • with object To use a Q-switch on (a laser), usually in order suddenly to increase the Q and produce a single pulse of very high power.

Origin

1960s; earliest use found in Journal of Applied Physics. From Q + switch<br>1960s; earliest use found in Journal of Applied Physics. From Q-switch.

Pronunciation

Q-switch

/ˈkjuːswɪtʃ/