Could someone help me out on this.

So just yesterday I contacted dragon lasers about their handheld yellow pointers, I asked about how they worked. Things such as pump wavelength and processes used. Shortly after I checked gmail to find a nice letter from Adam explaining that the yellows used a 808nm pump. He did not know the exact process but I decided I could probably figure it out.

Here is how I imagine it works,


I realized that Nd: YAG emits like this,


so perhaps a Cr: YAG would work better,


I kind of doubt that though and either way both crystals are incredibly hard to get a hold of to emit at their 1180nm lines.

So is this possible? Im not thinking of building this anytime soon but i'm curious if this is how they make yellow handhelds.