10 ESSENTIALS: 05 – Pulsed Frequencies

Dialing in the Laser

Laser light can be delivered continuously or in pulses. Pulse frequency is measured in Hertz (Hz), with one Hz representing one pulse per second.

This gives laser designers a variable to work with beyond wavelength and power: the pattern in which the light is delivered.

Research demonstrates that biological responses can differ between continuous and pulsed light under certain conditions, and that changing pulse parameters can also influence the observed response. (1,2)

Why Pulsing Matters

Pulsing changes the way light energy is delivered over time.

Research comparing continuous and pulsed photobiomodulation has found that different pulse frequencies and delivery modes can produce different biological responses.

This does not mean that one frequency is universally superior to another. It means that frequency is another parameter capable of influencing the interaction. (1,2) 

A laser system is not defined only by the wavelengths it contains or the amount of power it produces. How the light is delivered matters too.

700+ Pulsed Frequencies

The Blue Honest PRO VX laser system incorporates 700+ pulsed frequencies within its programming. The user does not need to calculate frequencies, manually enter Hz values, or determine how the frequencies should be combined. They are incorporated into the PRO VX's preprogrammed settings.

This allows sophisticated programming to remain inside the technology rather than becoming another variable that the user has to manage manually.

The number of frequencies is only meaningful when those frequencies are built into programming designed to make the technology practical to use.

Research & References

(1) Hashmi JT, Huang YY, Osmani BZ, Sharma SK, Naeser MA, Hamblin MR. Role of low-level laser therapy in neurorehabilitation. https://pubmed.ncbi.nlm.nih.gov/20662021/

(2) Kim HB, Baik KY, Seonwoo H, et al. Effects of pulsing of light on the dentinogenesis of dental pulp stem cells in vitro. Scientific Reports. 2018. https://www.nature.com/articles/s41598-018-19395-x