Just thought I'd share this with you, maybe some will apreciate it.
While wandering through the university I discovered a poster on the wall describing the results of a research project about nonlinear optics, resulting in a RGB-laser.
So the basic idea is, you take "yer olde ND:YLF" @ 1047nm, and fire that into a SHG, which gives you 523nm and 1047 as "waste". An OPO (optic parametric oscillator, some nonlinear crystal, don't ask me about it) then turns the 523nm he is fed into 523nm, 1522nm and 798nm. The 523, green, is already the finished product, while the 1522 and the 1047 go into SFG (sum frequency generator), generating 620nm, whereas the 798 and the 1047 create a whopping 453nm, inside a second SFG.
Okay, so much for the complicated scientific talk, here the nice part: the setup they used had 11W input and 3W RGB output (1.1 red, 1.5 green and 0.5 blue), which I think of as really cool. An efficiency of 36%, RGB is what I'd like to have in my house
So now curiosity asks me whether this'd be doable at home
While wandering through the university I discovered a poster on the wall describing the results of a research project about nonlinear optics, resulting in a RGB-laser.
So the basic idea is, you take "yer olde ND:YLF" @ 1047nm, and fire that into a SHG, which gives you 523nm and 1047 as "waste". An OPO (optic parametric oscillator, some nonlinear crystal, don't ask me about it) then turns the 523nm he is fed into 523nm, 1522nm and 798nm. The 523, green, is already the finished product, while the 1522 and the 1047 go into SFG (sum frequency generator), generating 620nm, whereas the 798 and the 1047 create a whopping 453nm, inside a second SFG.
Okay, so much for the complicated scientific talk, here the nice part: the setup they used had 11W input and 3W RGB output (1.1 red, 1.5 green and 0.5 blue), which I think of as really cool. An efficiency of 36%, RGB is what I'd like to have in my house
So now curiosity asks me whether this'd be doable at home
