User:Andy Maloney/Notebook/Lab Notebook of Andy Maloney/2009/04/02/Optical tweezers
Well, I was successful in getting the laser beam collimated today. I thought that doing this optical setup would allow me to use the shutter without the beam being clipped by it. Unfortunately, I didn't take into consideration the magnification of the virtual image and the inevitable magnified beam not missing the shutter.
But, the good news is that I can fix this with another lens.
Also, for some reason the perpendicular axis just doesn't want to collimate properly. It does a pretty good job and I think the reason it doesn't collimate completely with my setup right now is because of the FAC collimation on the LD. I have no clue as to what the focal length of this other lens is and it could be screwing up in my setup.
The anamorphic prisms work as advertised. I input the beam and the output was quasi-spherical. The power is reduced but I didn't measure it, just a visual inspection.