The purpose of the mirrors at the ends of a helium-neon laser is:
A)to assure that no laser light leaks out
B)to increase the number of stimulated emissions
C)to absorb some of the photons
D)to keep the light used for pumping inside the laser
E)to double the effective length of the laser

Question

Quizplus · Accepted Answer

The mirrors at the ends of a helium-neon laser are designed to create an optical cavity, which enhances the number of stimulated emissions by reflecting the photons back and forth through the amplifying medium. This process amplifies the light, creating a coherent laser beam. Therefore, the correct choice is B.

The Purpose of the Mirrors at the Ends of a Helium-Neon