SHG Cavity: Difference between revisions

 

==Alignment Procedures==

 

The first thing to do is to measure the beam profile and figure out what sort of lenses need to be used to mode match the beam. From what I've experienced, it's easiest to mode match the cavity with two lenses. Both lenses together determine the waist size and position and both need to be adjusted to best mode match the cavity. However, it seems like lens 1 moves the position of the waist more than the size of the waist and lens 2 changes the waist size more than the position. I find it easiest to have both lenses on translation stages.