AO188 Instrument Parameters
| Location of the system | Nasmyth focus (IR) |
| Spectral coverage | 0.9-5.3 um |
| Main Optics | 2.7' FOV, F/13.9 |
| Main optics throughput | 0.7 at JHKLM |
| Number of control elements | 188 |
| Deformable morror | Bimorth mirror with 188 control electrodes |
| Tip/tilt mount stroke | +-5'' |
| High-order WFS | Curvature sensor with 188 photon counting APDs |
| Low-order WFS | 2x2 Shack-Hartman sensor with 16 photon counting APDs |
| Control bandwidth | > 100 Hz, 1000 corrections/sec |
| NGS magnitude | -1 < R < 16.5 |
| TTGS magnitude | R < 18 (expected) |
| NGS isoplanatic field | 1' in diameter |
| TTGS isoplanatic field | Not determined |
| Laser | Sum frequency generation 4.0W (on-sky) at 589nm (generates R=11 LGS) |
| Laser beam transfer optics | Single mode photonic crystal fiber |
| Laser launching telescope | 50cm telescope attached behind the secondary |
30 July 2010