Demonstration of a squeezed zero-area Sagnac interferometer for future gravitational wave detectors

Document #:

LIGO-G1000869-v1

Document type:

G - Presentations (eg Graphics)

Abstract:

In this talk we present the experimental demonstration of a table-top zero-area Sagnac interferometer at 1064nm whose sensitivity was increased by 8.2 dB with squeezed light. Measurements performed directly on our squeezed-light laser output revealed squeezing of 12.7 dB. The sensitivity of a squeezed-light enhanced Sagnac interferometer can surpass the standard quantum limit for a broad spectrum of signal frequencies without the need for filter cavities as required for Michelson interferometers. The Sagnac topology is therefore a powerful option for future gravitational-wave detectors.

Files in Document:

• LSC2010_Krakau.pdf (1.3 MB)

Topics:

• Meeting

Authors:

• Tobias Eberle

Keywords:

Sagnac squeezing