- Mar 5, 2017
Aligning the crystals is a difficult task. It requires a lot of patience and fine tuning. There are members on here that have done the job of realigning, and would probably be more than happy to guide you through it. But first it important to understand what the crystals are and how your laser actually works. As you know, the 473 is a dpss. You've already identified that there is a pump diode which will be at 808nm. Next there will be a Nd:YAG crystal that when pumped by the 808, will produce the 946nm line. Lastly you have a NLO crystal, which will frequency double the 946nm to produce 473nm. The NLO has very strict phase matching to comply with otherwise you will get no or very little 473nm output. The problem is we don't know if any of the crystals are damaged or if it is the crystals at all. If the pump diode is not outputting enough then the lasing threshold will not be met for the 473nm to occur. I own a 473 myself, but have never had to realign the crystals.
HOLY SHIT BATMAN so in my observations ive only seen 1 rod, would they above mentioned possibly be combined into one ??? .. if people are giving advice id be keen to try the alignment . crosses fingers that the rod isnt broken .. would it be advisable to attempt replacing the unknown value 808 c mount diode first before trying to manipulate the rod?