Dye Laser pumped with DPSS...

[Laser Ben]

You cannot run without the Q-Switch as it is refractive and moves the beam path ~1" downwards. Additionally, the only way to pull the LBO is to remove the fold mirror and pull it out. I know what you mean, I just have no way of doing that.

[Laserman532]

Whatever happened to peak the IR, insert the qswitch, dip the qswitch, insert the doubler, align the doubler???? Usually if you install a new component, your supposed to walk through the whole thing...

steve

nail smacked directly by hammer

[Laserman532]

You cannot run without the Q-Switch as it is refractive and moves the beam path ~1" downwards. Additionally, the only way to pull the LBO is to remove the fold mirror and pull it out. I know what you mean, I just have no way of doing that.

refractive q-sw moving beam 1" is a new one for me...not saying it isnt true but it is something I have not heard... bottom line when q-sw is off it should have no to none effect on alignment (it is relatively transparent until activated) generally speaking of course.

[Laser Ben]

It is Brewster angled so the beam is refracted downward when the q-switch is off. If I remove it, it will go off of the end mirror.

[Laserman532]

It is Brewster angled so the beam is refracted downward when the q-switch is off. If I remove it, it will go off of the end mirror.

so if it lases when energized, operate it in CW mode not QS mode (if that is possible)

[Laser Ben]

Yes, it can easily be run in CW, I just cannot remove the Q-Switch and run it.

[shrad]

based on this paper: http://www.fluo-microscopy.ru/UserFi...%20imaging.pdf

AMC and Phen Green could be suitable for two-photon pumping, Phen Green being easily pumped by a 1064nm laser

Phen Green fluoresces at 435nm and 525nm at that pump wavelength, and Phen Green + Fe fluoresces at 440nm

might be interesting

[tocket]

based on this paper: http://www.fluo-microscopy.ru/UserFi...%20imaging.pdf

AMC and Phen Green could be suitable for two-photon pumping, Phen Green being easily pumped by a 1064nm laser

Phen Green fluoresces at 435nm and 525nm at that pump wavelength, and Phen Green + Fe fluoresces at 440nm

might be interesting

Those peaks at 435 and 440 nm are interesting, because they obviously can't be from two photon absorption. The authors of the article don't even bother commenting on that...

[Stoney3K]

Stokes law says output wavelength must be longer then the input wavelength unless you have non-linear optics.. So sorry, no blue,

Steve

So, thinking straight here, blue output would need a UV pump. What are the absorption wavelengths that would work here? Would a diode at Bluray wavelength cut it, or is that too close to blue to be any good?

For convenience's sake, I'm disregarding the fact that BR diodes won't come anywhere near the required power, not as a practical application, but more of a physics question. Pumping with direct diodes instead of DPSS might give you some more watts-per-$, in theory at least.

[shrad]

you take a copper tube, you drill plenty of holes in it, you stick bluray diodes in them, then you put your dye tube in the copper tube

that was an idea I had some times ago, but surely this wouldn't work!