What is one advantage of pulsing a laser?

Pulsing a laser offers several advantages, and providing thermal relaxation is one of the key benefits. When a laser emits energy in pulses rather than a continuous beam, it allows for periods of cooling between pulses. This is particularly important in medical and cosmetic procedures, such as those involving tissue treatment. The thermal relaxation period gives the targeted tissues time to dissipate heat, which can reduce the risk of damage to surrounding tissues. This selective treatment can enhance the effectiveness of the procedure while minimizing side effects and complications.

Other options, while relevant in different contexts, do not capture the primary advantage of pulsing. For instance, increasing the intensity of the beam refers to the overall energy output rather than the technique of pulsing. Selective photocoagulation is indeed a benefit of specific laser wavelengths and configurations, but it doesn't highlight the distinct advantage of using a pulsed approach specifically. Similarly, simplification of the delivery system is not inherently associated with pulsing; instead, it focuses on the mechanism of application rather than the operational advantages of energy delivery through pulsed lasers.