A green DPSS laser pointer has just one IR filter, removing it would result in a total output increase but it would not be possible to collimate both 1064 and 532 wavelengths at the same time. I do not know if 808nm is involved in the output increase. Read the post concerning the IR pointer.
Surgical lasers use a visible guide laser and IR laser. There is a post made here recently, it shows how a green DPSS works.