Help 1064 nm emitted from different sources of devices

[live-in-upwey]

Are there any differences between 1064 nm emitted by Long-Pulsed Diode laser device and 1064 nm emitted by Long-Pulsed Nd:YAG laser device for hair removal?

Assume that fluences, pulse durations & spot sizes of both devices are exactly the same, should the property, efficacy and side effects of the 1064-nm light be the same no matter what sources it comes from? Shouldn't it?

 

[blue_leaf77]

Neglecting their coherence property, given the condition you assume then the two lasers should have the same energy per pulse. I expect they won't exhibit appreciable difference in the way they interact with matter.

 

[berkeman]

Are there any differences between 1064 nm emitted by Long-Pulsed Diode laser device and 1064 nm emitted by Long-Pulsed Nd:YAG laser device for hair removal?

Assume that fluences, pulse durations & spot sizes of both devices are exactly the same, should the property, efficacy and side effects of the 1064-nm light be the same no matter what sources it comes from? Shouldn't it?

Welcome to the PF.

Laser fluence is related to the overall amount of energy delivered by the pulse. I don't think you can assume that the light intensity versus time is the same just because the fluences are the same. Do you have any data showing the laser light flux versus time for each of those pulse sources?

https://www.rp-photonics.com/fluence.html

Has the FDA approved devices that use each of those light sources? Are there any clinical studies comparing their effectiveness to each other?

 

[live-in-upwey]

I'll try to get the info from the manufacturers. Thank you for your info, very much appreciated.