Continuous Wave Lasers are characterized by?

• A. The output of a laser that is operated in a continuous rather than a pulsed mode
• B. Pulsed mode
• C. Random mode
• D. Subharmonic mode

Answer: (A)

The main idea here is what defines a continuous wave laser. A continuous wave laser emits a steady, unbroken beam of light as long as power is applied, meaning the output is essentially constant in time. This contrasts with pulsed lasers, which deliver light in short bursts with gaps in between, producing high peak power but not a constant output. A continuous output is particularly useful when you need steady energy delivery, such as for continuous heating, stable illumination, or precise measurements that rely on a constant beam. The other described modes don’t fit this concept: pulsed mode describes the opposite behavior, while random mode and subharmonic mode aren’t standard descriptors for a laser’s time-domain output.