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Advancements in Squeezer Technology for Future Detectors

The recent L-V Meeting on June 11, 2008, at Orsay discussed the exciting advancements in squeezer technology, crucial for enhancing high-power operations in future detectors. Key speakers, including Koy Lam and Nergis Mavalvala, highlighted the successful demonstration of 7 dB of squeezing down to 10 Hz and its implications for reducing laser power requirements. Planned experiments at GEO600 and Hanford H1 aim to address low noise challenges. The development timeline includes a full proposal to LIGO by August 2008 and tests scheduled for early 2011, marking significant progress.

timothy-beasley
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Advancements in Squeezer Technology for Future Detectors

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  1. H1 Squeezer Experiment L-V Meeting, LAL Orsay,June 11, 2008 ANU, AEI, MIT, CIT and LHOPing Koy Lam, Nergis Mavalvala, David McClelland, Roman Schnabel, Daniel Sigg, Henning Vahlbruch and Stan Whitcomb (so far)

  2. Motivation • High power operation in future detectors • Biggest remaining technical risk (after DC readout) • Squeezing allows for lower laser power • Squeezer technology now ready • 7 dB of squeezing down to 10 Hz • Has been demonstrated on a bench and on interferometers (40M) Missing: Low frequency noise demonstration • Planned Experiments • GEO600: prototype for long baseline interferometers • Hanford H1: low noise demonstration L-V Meeting

  3. Sketches (very preliminary) H1 GEO600 Same principles and technology! Complementary goals L-V Meeting

  4. eLIGO S6 aLIGO: install/ commissioning LLO LHO ~6 months H1 Squeezer Time Line • Full fletched proposal to LIGO lab: August 2008 • Approval (hopefully): September 2008 • Construction • Build breadboard by fall 2009 • Testing and characterization by mid 2010 → send to LHO • Experiment on H1: Feb 2011 to Sep 2011 L-V Meeting

  5. Progress • Wiki: http://baikal.mit.edu/sqwiki/H1Squeezer • Email list: http://mm.ligo.caltech.edu/mailman/listinfo/squeezer • Progress • Most technical questions addressed • OPA configuration, SHG topology, auxiliary lasers, fiber stabilization, in-vacuum Faraday modifications, physical setup at H1, concepts for electronics, scattering, etc. • Preliminary layout available • Working on a budget • Schedule/workload: next Squeezing is an exciting new technology! L-V Meeting

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