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 $8.6\pm 0.8\mathrm{dB}$ was measured across the detection band of interest to Advanced LIGO, and controlled squeezing measured over $5900\mathrm{s}$. Our results also demonstrate that the traveling-wave design has excellent intracavity backscattered light suppression of $47\mathrm{dB}$ and incident backscattered light suppression of $41\mathrm{dB}$, which is a crucial design issue for application in advanced interferometers.

© 2011 Optical Society of America

Squeezed light for advanced gravitational wave detectors and beyond

E. Oelker, L. Barsotti, S. Dwyer, D. Sigg, and N. Mavalvala
Opt. Express 22(17) 21106-21121 (2014)

Squeezed quadrature fluctuations in a gravitational wave detector using squeezed light

S. Dwyer, L. Barsotti, S. S. Y. Chua, M. Evans, M. Factourovich, D. Gustafson, T. Isogai, K. Kawabe, A. Khalaidovski, P. K. Lam, M. Landry, N. Mavalvala, D. E. McClelland, G. D. Meadors, C. M. Mow-Lowry, R. Schnabel, R. M. S. Schofield, N. Smith-Lefebvre, M. Stefszky, C. Vorvick, and D. Sigg
Opt. Express 21(16) 19047-19060 (2013)

Ultra-low phase noise squeezed vacuum source for gravitational wave detectors

E. Oelker, G. Mansell, M. Tse, J. Miller, F. Matichard, L. Barsotti, P. Fritschel, D. E. McClelland, M. Evans, and N. Mavalvala
Optica 3(7) 682-685 (2016)

Phase control of squeezed vacuum states of light in gravitational wave detectors

K. L. Dooley, E. Schreiber, H. Vahlbruch, C. Affeldt, J. R. Leong, H. Wittel, and H. Grote
Opt. Express 23(7) 8235-8245 (2015)

Characterization and evasion of backscattered light in the squeezed-light enhanced gravitational wave interferometer GEO 600

Fabio Bergamin, James Lough, Emil Schreiber, Hartmut Grote, Moritz Mehmet, Henning Vahlbruch, Christoph Affeldt, Tomislav Andric, Aparna Bisht, Marc Brinkmann, Volker Kringel, Harald Lück, Nikhil Mukund, Severin Nadji, Borja Sorazu, Kenneth Strain, Michael Weinert, and Karsten Danzmann
Opt. Express 31(23) 38443-38456 (2023)