Multiple choice

The first step to get output from a laser is to excite an active medium. What is this process called?

  1. Raising

  2. Priming

  3. Exciting

  4. Pumping

Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Pumping is the process of supplying energy to an active medium to achieve population inversion. This is a fundamental requirement for laser operation.