LGSAO versus NGSAO

1
NGS AO Control
Light from Telescope
Telescope pointing offload
TTM
Tip/tilt
NGS
IR transmissive dichroic
Science Camera
DM
Offload focus to telescope
beamSplitter
Wavefront Controller
WFS
Flux Rot pupil angle When TT closed
NGS Reconstructor
Centroid Origins
2
LGS AO Control
Light from Telescope
Telescope pointing offload
TTM
Tip/tilt
LGS
NGS
IR transmissive dichroic
Science Camera
DM
Offload focus to telescope
Sodium transmissive dichroic
STRAP
Wavefront Controller
Lenslets
WFS
LBWFS
TSS x,y,z stage
Focus
Laser Orientation Spot size flux Rot pupil
angle When DM closed
Optimized centroids offsets
LGS Reconstructor
Tip/tilt to Laser
Laser TT mirror
Laser pointing offload