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A Quantum-Enhanced Prototype Gravitational-Wave Detector
Keisuke Goda, Osamu Miyakawa, Eugeniy E. Mikhailov +7
The quantum nature of the electromagnetic field imposes a fundamental limit on the sensitivity of optical precision measurements such as spectroscopy, microscopy, and interferometr…
Harmonic entanglement with second-order non-linearity
Nicolai B. Grosse, Warwick P. Bowen, Kirk McKenzie +1
We investigate the second-order non-linear interaction as a means to generate entanglement between fields of differing wavelengths. And show that perfect entanglement can, in princ…
Quantum Noise Locking
Kirk McKenzie, Eugeniy Mikhailov, Keisuke Goda +5
Quantum optical states which have no coherent amplitude, such as squeezed vacuum states, can not rely on standard readout techniques to generate error signals for control of the qu…
Photothermal Fluctuations as a Fundamental Limit to Low-Frequency Squeezing in a Degenerate Optical Parametric Amplifier
Keisuke Goda, Kirk McKenzie, Eugeniy E. Mikhailov +3
We study the effect of photothermal fluctuations on squeezed states of light through the photo-refractive effect and thermal expansion in a degenerate optical parametric amplifier…
Squeezing in the audio gravitational wave detection band
K. McKenzie, N. Grosse, W. P. Bowen +4
We demonstrate the generation of broad-band continuous-wave optical squeezing down to 200Hz using a below threshold optical parametric oscillator (OPO). The squeezed state phase wa…
Experimental demonstration of a squeezing enhanced power recycled Michelson interferometer for gravitational wave detection
Kirk McKenzie, Ben C. Buchler, Daniel A. Shaddock +2
Interferometric gravitational wave detectors are expected to be limited by shot noise at some frequencies. We experimentally demonstrate that a power recycled Michelson with squeez…