Abstract
The LIGO Squeezed Light Injection Experiment was a project that first injected squeezed light into a LIGO 4 km interferometric gravitational-wave detector. This experiment was a collaboration between the LIGO Hanford Observatory, ANU Centre for Gravitational Physics, Massachusetts Institute of Technology, and the Max Planck Institute for Gravitational Physics (Albert Einstein Institute). The Experiment was co-led by the thesis author from ANU, Sheila Dwyer and Dr. Lisa Barsotti from MIT, and Dr. Daniel Sigg from LIGO Hanford Observatory, and aided by members of the LIGO Scientific Collaboration (LSC). After introducing the project background, an overview of the Enhanced LIGO interferometer is presented. This includes the interferometer hardware and modifications made for the LIGO Squeezed Light Injection Experiment. The squeezed light source for the Experiment is then covered, including specifics about the contribution from the ANU, the Optical Parametric Oscillator.
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Notes
- 1.
By 2007, the preparations for injecting squeezing into the GEO600 detector were well underway. However, the GEO600 quantum-noise-limited sensitivity region is 700 Hz and above.
- 2.
The difference being the effect of vacuum fluctuations from optical loss sources separate to the AS port vacuum fluctuations—see Appendix A for details.
- 3.
The author acknowledges, with gratitude, the remote controls and user-interfaces were coded and maintained by Maxim Factourovich from Columbia University NY, under the supervision of Dr. Daniel Sigg.
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Chua, S.S.Y. (2015). Overview of the LIGO Squeezed Light Injection Experiment. In: Quantum Enhancement of a 4 km Laser Interferometer Gravitational-Wave Detector. Springer Theses. Springer, Cham. https://doi.org/10.1007/978-3-319-17686-4_8
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DOI: https://doi.org/10.1007/978-3-319-17686-4_8
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