Squeezed vacuum phase control at 2 μm

M. J. Yap; D. W. Gould; T. G. McRae; P. A. Altin; N. Kijbunchoo; G. L. Mansell; R. L. Ward; D. A. Shaddock; B. J.J. Slagmolen; D. E. McClelland

doi:10.1364/OL.44.005386

Squeezed vacuum phase control at 2 μm

M. J. Yap, D. W. Gould, T. G. McRae^*, P. A. Altin, N. Kijbunchoo, G. L. Mansell, R. L. Ward, D. A. Shaddock, B. J.J. Slagmolen, D. E. McClelland

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

7 Citations (Scopus)

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.

Original language	English
Pages (from-to)	5386-5389
Number of pages	4
Journal	Optics Letters
Volume	44
Issue number	21
DOIs	https://doi.org/10.1364/OL.44.005386
Publication status	Published - 2019

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title = "Squeezed vacuum phase control at 2 μm",

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.",

author = "Yap, {M. J.} and Gould, {D. W.} and McRae, {T. G.} and Altin, {P. A.} and N. Kijbunchoo and Mansell, {G. L.} and Ward, {R. L.} and Shaddock, {D. A.} and Slagmolen, {B. J.J.} and McClelland, {D. E.}",

note = "Publisher Copyright: {\textcopyright} 2019 Optical Society of America",

year = "2019",

doi = "10.1364/OL.44.005386",

language = "English",

volume = "44",

pages = "5386--5389",

journal = "Optics Letters",

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T1 - Squeezed vacuum phase control at 2 μm

AU - Yap, M. J.

AU - Gould, D. W.

AU - McRae, T. G.

AU - Altin, P. A.

AU - Kijbunchoo, N.

AU - Mansell, G. L.

AU - Ward, R. L.

AU - Shaddock, D. A.

AU - Slagmolen, B. J.J.

AU - McClelland, D. E.

PY - 2019

Y1 - 2019

N2 - 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.

AB - 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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U2 - 10.1364/OL.44.005386

DO - 10.1364/OL.44.005386

M3 - Article

SN - 0146-9592

VL - 44

SP - 5386

EP - 5389

JO - Optics Letters

JF - Optics Letters

IS - 21

ER -

Squeezed vacuum phase control at 2 μm

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