THE LGSF LASER SYSTEM - Thirty Meter Telescope

TMT.AOS.DRD.09.003.DRF05 Page 7 of 30REQUIREMENTS DOCUMENT FOR THE LGSF LASER SYSTEM August 25, 2009BDM – Beam Dump MirrorBS – Beam SplitterBTO – Beam Transfer OpticsCW – Continuous WaveDM – Deformable MirrorDMS – Data Management SystemDFA – Deployable Fold ArrayDPA – Deployable Pointing ArrayDRD – Design Requirements DocumentDTRA – Deployable Tracking ArrayECRS – Elevation Coordinate SystemFF – Far FieldFoV – Field of ViewFSM – Fast Steering MirrorGLAO – Ground Layer Adaptive OpticsGUI – Graphical User InterfaceICD – Interface Control DocumentIRMOS – InfraRed Multi Object SpectrographLAS – Laser SystemLGS – Laser Guide StarLGSF – Laser Guide Star FacilityLIS – Laser Interlock SystemLSQ – Laser SequencerLSS – Laser Safety SystemLLT – Laser Launch TelescopeLOM – Laser Output MirrorMCAO – Multi Conjugate Adaptive OpticsMIRAO – Mid IR Adaptive OpticsMOAO – Multi Object Adaptive OpticsMTBF – Mean Time Between FailureN/A – Not ApplicableNFIRAOS – Narrow Field Infrared Adaptive Optics SystemNF – Near FieldOAD – Observatory Architecture DocumentOCD – Operations Concept Document (Level 1 document)OCDD – Operational Concept Definition DocumentORD – Observatory Requirements Document