1. LGS Project Meeting December 21, 2006 Agenda SWIFT update - A. Bouchez
Laser facility status - A. Bouchez
AO bench plans - J. Roberts
LGS user interface - J. Roberts
FlexCam: A method for sensing non-common path pointing errors on PalAO - K. Wallace

2. SWIFT Optical Design

3. SWIFT Mechanical Design

4. SWIFT mounting to AO bench
SWIFT optical bench mounts ot AO bench using 3 permanently located conical mounting points. Clamp mechanism is captive to SWIFT bench.
Mounting scheme for PHARO FM3 still unresolved.

5. SWIFT handling cart
Allows work on instrument with optics up and mounting to AO bench on AO spit and at on telescope (Cass ring at 155º).
Now provides 1 cm fine position and tilt adjustment using mechanism below.

6. Review panel recommendations
Arrival at Palomar should be delayed 2-3 months (to May-June 2008) to allow more thorough integration and testing.
I & T schedule needs to be more clearly defined.
More resources should be devoted to software development.
Operational modes and calibrations need to be defined.

7. SWIFT tasks for Palomar and AO group
Clarify mass limit. SWIFT currently estimated to be 220 kg + cables. Determine if AO bench can support weight.
Provide non-common path flexure data to SWIFT team. Determine if we can mitigate before SWIFT arrival.
Plan mounting scheme and purchase of new science dichroic.
Determine strategy regarding SWIFT shutter.
Layout AO relay (& PHARO) to provide focus at new location.
Recoat relay optics (OAPs and flats).
Design new mounting scheme for PHARO FM3.
Implement required changes to AO stimulus.
Build new enclosure.
Consider implications of SWIFT on NGS/LGS acquisition software and procedures.

8. AO 5-year plan

9. Laser facility status
Laser is in good shape for January observing run.
Power and wavefront quality
Replace both laser heads with Mach-3 design (Jan )
Replace sum-frequency and intra-cavity crystals.
Document laser optical design.
Characterize delivered wavefront quality.
Characterize bandwidth and pulse shape.
Reliability and automation
Improved cleanliness (clean-room enclosure, clean optics).
Improved temperature control of bench (insulation, etalon control).
Phased implementation of LGS computer:
Temperature display and control.
Frequency dither loop control.
Power display and logging.
Image display and logging.
Program delay generator.
Operations
Document operations procedures

10. AO Bench Opto-mechanics
Current plans for January/February
Dichroic
Separate reflecting spot and dichroic capabilities into 2 optics
Use a motorized stage to switch between the two optics
LOWFS
Testing to determine the cause of the observed loss of light in the LOWFS path
Future Plans
Re-layout LOWFS and acqusition camera in order to put the LOWFS directly in the beam path and remove the pick off requirement

11. New Dichroic Layout Dichroic LOWFS
Separate reflecting spot and dichroic capabilities into 2 optics
Use a motorized stage to switch between the two optics
LOWFS
Testing to determine the cause of the observed loss of light in the LOWFS path

12. AO Software
Build for January includes bug fixes and previously tested code only
aodr bug fix for recording BTO data
Ability to turn off late message warnings in aodr (now the default)
Remove debug print in aocp when doing a restore
AO software version switching
New user interface to be implemented for February run
Includes NGS improvements and new mode structure for LGS

13. New LGS User Interface
GUI Functionality
Full document located at
under Technical Reference (until there’s an AO software page)