At what point is energy density emitted from a diode laser fiber optic tip at its greatest level?

The energy density emitted from a diode laser fiber optic tip is at its greatest level at the end of the tip. This is because, as the light travels through the fiber optic, it is transmitted with minimal loss of power or energy until it reaches the very end where it is emitted into the surrounding tissue or medium. At this point, the energy is concentrated and directed, allowing for the highest intensity of light to be delivered to the treatment area.

When considering the other points along the fiber, such as the mid-point or near the base of the handle, the energy has not yet reached its destination and may begin to scatter or dissipate, leading to a lower intensity at those points. Similarly, the connecting junction may also experience some energy loss due to reflection or absorption, further reducing the effective energy density that could be delivered to the target site. Therefore, the end of the tip represents the point at which the laser energy is most concentrated and effectively utilized.