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Anchor to LAO Lab Experiments

Anchor to LAO Lab Experiments. Agenda for this discussion: Role of a MOAO testbed Improved results on LAO MCAO/MOAO testbed / verification of tomography error Guidelines for scaling test parameters On-axis / Off-axis error budget. Primary MOAO testbed deliverables.

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Anchor to LAO Lab Experiments

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  1. Anchor to LAO Lab Experiments Agenda for this discussion: Role of a MOAO testbed Improved results on LAO MCAO/MOAO testbed / verification of tomography error Guidelines for scaling test parameters On-axis / Off-axis error budget

  2. Primary MOAO testbed deliverables • Verify untested/theoretical terms in WF error budget for several key cases • Uncover hidden errors and concerns (several examples after tour) • Feedback to optical design and cost estimates • Demonstrate feasibility of key technologies What NOT to look for: • Extensive trade studies with variation of many related parameters

  3. Finding tomography error • Error budget terms are modeled with simulation or verified empirically • Strategy: • Measure Strehl with all atmosphere at the ground • Derive fitting error, aliasing error, DM open-loop error, and other terms • Measure Strehl with an MOAO-type open-loop correction utilizing LTAO with distributed atmosphere • Difference in Strehls due to tomography error and scintillation

  4. Response of tomography to wavefront error

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