-Trouble shooting with the FEA revealed a long standing problem I had been having. The photo sensor output kept climbing even though it appeared to have a constant laser light source. Replacing the laser with a LED confirmed that it was in fact the laser's light intensity that was fluctuating and not an issue with the photosensor's amplifier like I had assumed. A constant output laser will have to be purchased and used or an active light intensity filter will have to be placed in front of the existing laser.