Two 1W Green DPSS Viasho to REALIGN
I sell two used, opened, cleaned 1W Green DPSS Viasho heads
One makes around 200~300mW with a vanadate replaced by one given to me by junktronix (it comes from a medical head and was designed to cope with 25W of multimode pump), TEC driver has been repaired (op-amp replaced) and works flawlessly
The other makes around 150mW with original crystals
Optics are healthy, pump curve has been traced and seems pretty healthy too with diodes drawing 4.8A at max driver ramp
Cavities are pre-aligned to output an amount of green, you have to improve it by optimizing OC and HR distances and placing KTP at the mode matching place (approx 3mm between HR mount and doubler mount)
Drivers have dual TEC capability but only one is used, LD Driver is based on an IRF450 or 460 and can support a variety of shunt combinations if you replace resistors and tweak the meter's trimmers
The prices are :
Replaced vanadate one : 200€
Lower power one : 150€
It is also for sale on other forums
It comes without driver cover as I didn't have them when I acquired them or they were damaged
They had already been tampered with when I received them but I carefully inspected them and found them to be healthy (they had been disaligned by vibration)
They come with output optics and focusing out of alignment as cavity still has to be optimized, but it is quite straightforward (a prism for folding the beam which comes out of the folded arm of the V back in the main axis, and collimating/aperture)
This is a great occasion to have a 1W head at a fraction of its cost if you are able to realign it a bit
EDIT: I stopped in the process of realignment as I have not the time for these things anymore! If you're into it, you can easily realign them and make a nice cashback
Please contact me if you're interested!
Reply With Quote
