11699 12 archive 1 disk0/00/01/16/99 2008-09-20 01:35:16 2008-09-20 01:35:16 2008-09-20 01:35:16 article show 0 Rehbein Henning Rehbein-H Müller-Ebhardt Helge Müller-Ebhardt-H Somiya Kentaro Somiya-K Danilishin Stefan L. Danilishin-S-L Schnabel Roman Schnabel-R Danzmann Karsten Danzmann-K Chen Yanbei Chen-Y pub cls public ©2008 The American Physical Society. (Received 20 May 2008; published 16 September 2008) We thank S. Waldman and K. Strain as well as T. Corbitt, N. Mavalvala and C. Wipf for very useful discussions. We thank R. Adhikari for suggesting the level of reduction of classical noise. Research of H.M.-E., K.S. and Y.C. is supported by the Alexander von Humboldt Foundation’s Sofja Kovalevskaja Program. Y.C. is also supported by NSF Grants No. PHY-0653653 and No. PHY-0601459, as well as the David and Barbara Groce startup fund at Caltech. Research of S.L.D. is also supported by the Alexander von Humboldt Foundation. Research of H.R. and R.S. is supported by the Deutsche Forschungsgemeinschaft through the SFB No. 407. Currently planned second-generation gravitational-wave laser interferometers such as Advanced LIGO exploit the extensively investigated signal-recycling technique. Candidate Advanced LIGO configurations are usually designed to have two resonances within the detection band, around which the sensitivity is enhanced: a stable optical resonance and an unstable optomechanical resonance—which is upshifted from the pendulum frequency due to the so-called optical-spring effect. As an alternative to a feedback control system, we propose an all-optical stabilization scheme, in which a second optical spring is employed, and the test mass is trapped by a stable ponderomotive potential well induced by two carrier light fields whose detunings have opposite signs. 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Rev. D 68, 042001 (2003). 36. A. Buonanno and Y. Chen, Phys. Rev. D 69, 102004 (2004). 37. H. Vahlbruch, S. Chelkowski, B. Hage, A. Franzen, K. Danzmann, and R. Schnabel, Phys. Rev. Lett. 95, 211102 (2005). You are granted permission for individual, educational, research and non-commercial reproduction, distribution, display and performance of this work in any format. Alexander von Humboldt Foundation National Science Foundation PHY-0653653 National Science Foundation PHY-0601459 David and Barbara Groce Startup Fund, Caltech Deutsche Forschungsgemeinschaft (DFG) SFB 407 CaltechAUTHORS 12164 3 11699 1 application/pdf en public other

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