1. E2E school at LLO1  Han2k »Model of the LHO 2k IFO »Designed for lock acquisition study  SimLIGO1 »Model of all LIGO 1 IFOs »Designed for –noise hunting –detailed lock acquisition –modification testing Systems Constructed in E2E Matthew Evans

2. E2E school at LLO2 Han2k LHO 2k IFO  Detail sufficient for lock acquisition modeling  …but insufficient for detailed study »Perfect alignment »Perfect mode-matching »Only seismic noise »Simplified mechanics and electronics Han2k Simulation

3. E2E school at LLO3 SimLIGO1  A Detailed Model of each IFO »Modal Beam Representation (alignment, mode matching, thermal lensing) »All major noise sources (seismic, thermal, sensing, laser frequency, electronic, mechanical) »3D Mechanics »Complete analog and digital electronics chains  With Expanded Capabilities »Noise Studies –Non-linearity (cavity dynamics, electronic saturation, digitization, etc.) –Bilinear coupling »Sophisticated Lock Acquisition »Upgrade Testing  Note: items in black are TBD

4. E2E school at LLO4 SimLIGO1: The Detector  “Detector” is the top level box »Environment »PSL and IOO »COC »Digital ISC Detector

5. E2E school at LLO5 SimLIGO1: The Environment  Environmental Data (temperature, humidity, etc.)  Noise Sources »Seismic –correlated ground motion –6x6 transfer functions for BSC and HAM »Acoustic »Gravity Gradient »Other?  Signal Sources  Environmental Monitor

6. E2E school at LLO6 SimLIGO1: PSL and IOO  PSL »Laser source »Phase modulators  IOO »Output frequency noise »Frequency feedback paths PSL IOO

7. E2E school at LLO7 SimLIGO1: Core Optics Components  Large Optics Suspensions »One for each optic »Driven by suspension point motion from the Environment  Optical Components »Customizable to each IFO »Radiation pressure  Sensing Electronics »LSC and ASC detectors with shot noise »Detailed electronics chain leading to Pentek ADCs COC Optics

8. E2E school at LLO8 SimLIGO1: Digital ISC  LSC »Switchable input matrix –Full detection mode –Automated acquire mode »Full output matrix »Error and Control signal test points »Digital filter banks identical to on- site filters  ASC »Limited Input matrix »Full output matrix »Error and Control signal test points »Digital filters banks identical to on-site filters LSC

9. E2E school at LLO9 SimLIGO1: Large Optics Suspension  3D Suspension Mechanics »6 DOF suspension point motion »Pitch-position coupling »4 sensor/actuator points »Post hoc internal modes  Digital Controller »Dual sample rate »Pitch-position decoupling filters »Adjustable output matrix LOS Controller

10. E2E school at LLO10 Future work  TBD Highlights »Gravitation wave phase modulation in propagators »Ground motion data and model  Parameter Hunting and Gathering »Optical parameters for each IFO »Guoy Telescopes »As-Build asymmetries and imperfections »On-The-Floor transfer functions and noise spectra for all analog boards  Testing and Validation  Application to Real Problems »Noise hunting »Modification testing