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Status of the H1 Squeezer Experiment

Status of the H1 Squeezer Experiment. Excomm meeting, July 20, 2009 Daniel Sigg , LIGO Hanford Observatory ANU, AEI, MIT, CIT and LHO collaboration. Highlights. Graduate students Sheila D. (MIT) and Sheon C. (ANU) OPO development at ANU 6 dB of squeezing observed

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Status of the H1 Squeezer Experiment

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  1. Status of the H1 Squeezer Experiment Excomm meeting, July 20, 2009 Daniel Sigg, LIGO Hanford Observatory ANU, AEI, MIT, CIT and LHO collaboration

  2. Highlights • Graduate students Sheila D. (MIT) and Sheon C. (ANU) • OPO development at ANU • 6 dB of squeezing observed • Traveling wave bowtie design works • AEI loaner SHG at MIT • In the process of building our own (copy AEI design) • Laser, optical table and clean room installed at MIT • Noise model in development • Electronics design done for RF distribution • Shared with advanced LIGO • Next progress review in August H1 Squeezer Status

  3. Block Schematics Interferometer S S S S S S 4 0 1 2 5 3 HomodyneDetector Fiber Faraday Laser SHG OPO OMC Auxiliary Laser AS Port Squeezer DC H1 Squeezer Status

  4. PZT Actuator Squeezing Out Pump light In Oven/ Temperature Sensor Crystal ANU Traveling Wave OPO 150 mm 200 mm H1 Squeezer Status

  5. Lab at ANU Main Laser SHG OPO Main-Aux Phase lock Homodyne Auxiliary Laser H1 Squeezer Status

  6. Squeezing Performance Electronics Mainsharmonics Cross coupling from Coherent Lock Quantum noise • Electronic Noise? Lab environment Acoustic Noise 6dB Observed squeezing 8dB Inferred squeezing H1 Squeezer Status

  7. Optical Layout H1 Squeezer Status

  8. Schedule • ANU/OPO well on track • Noise model (remaining action item from review) will be completed in a ~month • AEI homodyne detector will be shipped to ANU ahead of schedule • Assembly at MIT • Optical layout on track • Parts late by ~2 months (initial funds almost exhausted) • Electronics production at LHO • Design on track • Procurement late by ~2 months (person power & money & H2 unavailable) H1 Squeezer Status

  9. Plan • Need to get the next review done! • Funding is now becoming the holdup • Need get some additional resources for • Electronics production at LHO • Setup at MIT • Procurement • ANU will continue on development of OPO • On track for 2010 delivery • Setup at MIT will continue with SHG & laser locking • Electronics production can go forward for RF, photodetectors, TTFFS and length servos H1 Squeezer Status

  10. Summary Impressive progress on the OPO Setup at MIT is coming along No major roadblocks so far More funding is needed in a very short time Some additional person-power is required at MIT and LHO for the second half of this year H1 Squeezer Status

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