The JPSA system has been installed and is ready to start cutting! Well I should say that the UV excimer system is ready. The femtosecond system is currently causing some headaches. Primarily, the femtosecond system’s set power (3.3 mJ) and high repition rate (1 kHz) are causing some headaches. We are looking in to ultra-fast variable attenuators from Altechna to address the set output power of the Legend system. The trick here is to lower the power with out streching the pulse. This makes conventaional laser power adjustment with ND filters or polarizers unseable. The Altechna system uses thin film polarizers in combination with half waveplates to minimize the pulse stretching while allowing continuous pulse attenuation.