1 / 10

Systems Constructed in E2E

A detailed model for lock acquisition study in SimLIGO1 system constructed in E2E Matthew Evans and Han2k's model of LHO 2k IFO. Design for noise hunting, detailed lock acquisition, and modification testing. Featuring perfect alignment, mode-matching, and seismic noise reduction.

rachaelr
Download Presentation

Systems Constructed in E2E

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  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

More Related