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Systems Constructed in E2E

Systems Constructed in E2E. Matthew Evans. 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. Han2k. LHO 2k IFO. Han2k Simulation.

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Systems Constructed in E2E

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  1. Systems Constructed in E2E Matthew Evans • 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 E2E school at LLO

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

  3. 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 E2E school at LLO

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

  5. 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 E2E school at LLO

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

  7. 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 E2E school at LLO

  8. SimLIGO1:Digital ISC • ASC • Limited Input matrix • Full output matrix • Error and Control signal test points • Digital filters banks identical to on-site filters • 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 LSC E2E school at LLO

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

  10. 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 E2E school at LLO

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