Technology
How a fractional CO2 laser works
Targeted microchannels, and a natural healing response.

Microscopic ablation columns
A CO2 laser beam is delivered in a pattern of tiny spots. Each spot becomes a microscopic ablation column in the skin. Between the columns, bridges of untreated skin are left in place.
The untreated bridges are what make the treatment “fractional”.
- Laser tube in the cabinet (glass or RF)
- Articulated arm
- Handpiece
- Microchannels in the skin
From tube to skin
The beam is produced in the laser tube, guided along the jointed arm and released at the handpiece. Because the arm is jointed, the operator moves the handpiece, not the cabinet. Compare the laser tubes →

A healing response, not an instant result
Healing around the microchannels stimulates collagen remodeling. That response may improve scars, fine lines and uneven texture. Results vary between patients. Applications →
Questions
What does “fractional” mean?
The laser treats a pattern of microscopic columns instead of the whole surface, so bridges of untreated skin remain between the columns.
Which wavelength does a CO2 laser emit?
CO2 lasers emit in the far infrared at 10,600 nm. This is a property of the CO2 laser type; no other wavelength figure is stated for these machines.
Are these concept images clinical photos?
Concept illustration, not a clinical before/after photo. Results vary. For trained clinicians and authorised indications only.