Spatial average temporal peak intensity describes the average intensity during which period?

Spatial average temporal peak intensity describes the average intensity during which period?

• A. On-time
• B. Off-time
• C. Across the entire cycle
• D. At the beam entrance

Answer: (A)

Spatial average temporal peak intensity describes the beam’s intensity at the moment of its highest instantaneous value, averaged across the beam’s cross-section, during the on-time of the pulse. It captures how bright the beam is when it is actively emitting, not when it is off. So the period being averaged over is the on-time. Off-time is when the beam is silent, which isn’t part of this peak measure; averaging across the entire cycle would be a temporal average, not a peak; and the concept isn’t about the beam entrance location.

Spatial average temporal peak intensity describes the beam’s intensity at the moment of its highest instantaneous value, averaged across the beam’s cross-section, during the on-time of the pulse. It captures how bright the beam is when it is actively emitting, not when it is off. So the period being averaged over is the on-time. Off-time is when the beam is silent, which isn’t part of this peak measure; averaging across the entire cycle would be a temporal average, not a peak; and the concept isn’t about the beam entrance location.