Check and flatten the wavefront in laser room
This procedure assumes that the wavefront sensor (WFS) and focus imaging are already setup, and no significant modification was added to the configuration.
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The focus of the 1m lens is picked off by a flipping mirror and imaged by a 10X objective coupled to a CCD camera.
Check WFS alignment and measure wavefront
The WFS beampath is stable if DM Near and DM Far are well aligned.
