Abstract

We report on the performance of a dual-wavelength resonant, traveling-wave optical parametric oscillator to generate squeezed light for application in advanced gravitational-wave interferometers. Shot noise suppression of 8.6±0.8dB was measured across the detection band of interest to Advanced LIGO, and controlled squeezing measured over 5900s. Our results also demonstrate that the traveling-wave design has excellent intracavity backscattered light suppression of 47dB and incident backscattered light suppression of 41dB, which is a crucial design issue for application in advanced interferometers.

© 2011 Optical Society of America

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