Optimal configurations of filter cavity in future gravitational-wave detectors
Abstract
Sensitivity of future laser interferometric gravitational wave detectors can be improved using squeezed light with frequency-dependent squeeze angle and/or amplitude, which can be created using additional so-called filter cavities. Here we compare performances of several variants of this scheme, proposed during the last few years, assuming the case of a single relatively short (tens of meters) filter cavity suitable for implementation already during the life cycle of the second-generation detectors, like Advanced LIGO. Using numerical optimization, we show that the phase filtering scheme proposed by Kimble et al [H. J. Kimble, Yu. Levin, A. B. Matsko, K. S. Thorne, and S. P. Vyatchanin, Phys. Rev. DPRVDAQ0556-2821 65, 022002 (2001).10.1103/PhysRevD.65.022002] looks like the best candidate for this scenario.
- Publication:
-
Physical Review D
- Pub Date:
- June 2010
- DOI:
- 10.1103/PhysRevD.81.122002
- arXiv:
- arXiv:1003.2859
- Bibcode:
- 2010PhRvD..81l2002K
- Keywords:
-
- 04.80.Nn;
- 03.65.Ta;
- 42.50.Dv;
- 95.55.Ym;
- Gravitational wave detectors and experiments;
- Foundations of quantum mechanics;
- measurement theory;
- Nonclassical states of the electromagnetic field including entangled photon states;
- quantum state engineering and measurements;
- Gravitational radiation detectors;
- mass spectrometers;
- and other instrumentation and techniques;
- Physics - Instrumentation and Detectors;
- General Relativity and Quantum Cosmology
- E-Print:
- 17 pages, 5 figures