For how long has laser technology been used worldwide?

Laser technology has been utilized worldwide for over 40 years, with its invention dating back to 1960 when Theodore Maiman developed the first working laser. This significant advancement in physics and engineering paved the way for a wide range of applications, including medicine, manufacturing, telecommunications, and more. In the medical field, lasers have revolutionized treatments by enabling precision surgeries and therapies that were not previously possible. Their long-standing presence and ongoing technological advancements underline the extensive experience and evidence supporting their efficacy and safety in various applications.

In contrast, the other options suggest much shorter timeframes that do not align with the historical development of laser technology and its integration into various industries. This highlights the importance of recognizing the long-standing role that lasers have played in modern technology and healthcare.