FAQ
Why is fiber alignment important?
On the GentleLASE system, the fiber optic delivers the laser
energy to the slider within the handpiece. The handpiece housing holds the
slider and distance gauge. Figure 1 illustrates laser beam travel within the
handpiece, as both the fiber and the slider optics must be aligned with the
distance gauge.
Figure 1. Proper and Improper Alignment.
Flashing and burning may result from improper fiber distal-end alignment,
causing overheating and charring of the distance gauge.
Figure "A" shows proper alignment of the fiber and slider optics
with the distance gauge within the handpiece. This results in a beam, which is
well centered within the treatment area of the distance gauge.
Figure "B" demonstrates poor alignment of the fiber. The fiber
misalignment is accentuated by the slider's very fast lens, causing the beam to
hit the distance gauge. This type of misalignment causes bright (white or
yellow) flashing and subsequent burning of the distance gauge. Frequently, there
is burning of the plastic distance gauge, and sometimes-nauseous fumes may be
emitted. This drastically reduces the life of the distance gauge and causes
overheating during treatments.
Within the past year, Candela has begun inserting a stainless
steel shadowing ring in their distance gauges. This ring attempts to prevent the
laser from hitting the distance gauge, which causes burning and charring. This
fails to address the problem, which is poor fiber alignment. In addition, the
ring becomes extremely hot and is of a safety concern when changing windows
during longer treatments.
Laser Scientific critically aligns each fiber during the
manufacturing process, resulting in a well-centered beam with no flashing and
burning.
For more information about the DuraLITE-GL fibers and Laser
Scientific products, call us at 512.733.8709.
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