Article ; Online: Squeezed vacuum phase control at 2 μm.
Optics letters
2019 Volume 44, Issue 21, Page(s) 5386–5389
Abstract: We demonstrate phase control for vacuum-squeezed light at a 2 μm wavelength, which is a necessary technology for proposed future gravitational wave observatories. The control scheme allowed examination of noise behavior at frequencies below 1 kHz and ... ...
Abstract | We demonstrate phase control for vacuum-squeezed light at a 2 μm wavelength, which is a necessary technology for proposed future gravitational wave observatories. The control scheme allowed examination of noise behavior at frequencies below 1 kHz and indicated that squeezing below this frequency was limited by dark noise and scattered light. We directly measure 3.9±0.2 dB of squeezing from 2 kHz to 80 kHz and 14.2±0.3 dB of antisqueezing relative to the shot noise level. The observed maximum level of squeezing is currently limited by photodetector quantum efficiency and laser instabilities at this new wavelength for squeezed light. Accounting for all losses, we conclude the generation of 11.3 dB of squeezing at the optical parametric oscillator. |
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Language | English |
Publishing date | 2019-10-31 |
Publishing country | United States |
Document type | Journal Article |
ISSN | 1539-4794 |
ISSN (online) | 1539-4794 |
DOI | 10.1364/OL.44.005386 |
Database | MEDical Literature Analysis and Retrieval System OnLINE |
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