Demonstration of length control for a filter cavity with coherent control sidebands

authored by: Naoki Aritomi, Yuhang Zhao, Eleonora Capocasa, Matteo Leonardi, Marc Eisenmann, Michael Page, Yuefan Guo, Eleonora Polini, Akihiro Tomura, Koji Arai, Yoichi Aso, Martin van Beuzekom, Yao-Chin Huang, Ray-Kuang Lee, Harald Lück, Osamu Miyakawa, Pierre Prat, Ayaka Shoda, Matteo Tacca, Ryutaro Takahashi, Henning Vahlbruch, Marco Vardaro, Chien-Ming Wu, Matteo Barsuglia, Raffaele Flaminio
Abstract: For broadband quantum noise reduction of gravitational-wave detectors, a frequency-dependent squeezed vacuum field realized using a filter cavity is the most promising technique and will be implemented in Advanced LIGO and Advanced Virgo in the fourth observing run. To obtain the benefit of frequency-dependent squeezing, the length and alignment of the filter cavity with respect to the squeezed vacuum field must be accurately controlled. To this purpose, a new length and alignment control scheme for a filter cavity, using coherent control sidebands, was suggested [Phys. Rev. D 102, 042003 (2020)PRVDAQ2470-001010.1103/PhysRevD.102.042003]. The coherent control sidebands are already used to control the squeezing angle in squeezed vacuum sources for gravitational-wave detectors. As both the squeezed vacuum field and coherent control sidebands have the same mode-matching conditions and almost the same frequency, the length and alignment of the filter cavity with respect to the squeezed vacuum field can be accurately controlled with this scheme. In this paper, we experimentally demonstrate the new control scheme for a filter cavity with coherent control sidebands. In addition to the conventional filter cavity control with the green field, we succeed in controlling the length of a 300-m filter cavity with coherent control sidebands and reduce the filter cavity length noise (rms) from 6.8 to 2.1 pm.
External Organisation(s): National Astronomical Observatory of Japan (NAOJ)
LIGO Laboratory
University of Tokyo
Centre national de la recherche scientifique (CNRS)
National Institute for Subatomic Physics (Nikhef)
University of Electro-Communications
National Tsing Hua University
Max Planck Institute for Gravitational Physics (Albert Einstein Institute)
Type: Article
Journal: Physical Review D
Volume: 106
ISSN: 2470-0029
Publication date: 10.11.2022
Publication status: Published
Peer reviewed: Yes
ASJC Scopus subject areas: Nuclear and High Energy Physics
Electronic version(s): https://doi.org/10.1103/physrevd.106.102003 (Access: Closed)

BibTeX

@article{8f1ab75ffbc64ba2a4ec92c375be0e53,
title = "Demonstration of length control for a filter cavity with coherent control sidebands",
abstract = "For broadband quantum noise reduction of gravitational-wave detectors, a frequency-dependent squeezed vacuum field realized using a filter cavity is the most promising technique and will be implemented in Advanced LIGO and Advanced Virgo in the fourth observing run. To obtain the benefit of frequency-dependent squeezing, the length and alignment of the filter cavity with respect to the squeezed vacuum field must be accurately controlled. To this purpose, a new length and alignment control scheme for a filter cavity, using coherent control sidebands, was suggested [Phys. Rev. D 102, 042003 (2020)PRVDAQ2470-001010.1103/PhysRevD.102.042003]. The coherent control sidebands are already used to control the squeezing angle in squeezed vacuum sources for gravitational-wave detectors. As both the squeezed vacuum field and coherent control sidebands have the same mode-matching conditions and almost the same frequency, the length and alignment of the filter cavity with respect to the squeezed vacuum field can be accurately controlled with this scheme. In this paper, we experimentally demonstrate the new control scheme for a filter cavity with coherent control sidebands. In addition to the conventional filter cavity control with the green field, we succeed in controlling the length of a 300-m filter cavity with coherent control sidebands and reduce the filter cavity length noise (rms) from 6.8 to 2.1 pm.",
author = "Naoki Aritomi and Yuhang Zhao and Eleonora Capocasa and Matteo Leonardi and Marc Eisenmann and Michael Page and Yuefan Guo and Eleonora Polini and Akihiro Tomura and Koji Arai and Yoichi Aso and {van Beuzekom}, Martin and Yao-Chin Huang and Ray-Kuang Lee and Harald L{\"u}ck and Osamu Miyakawa and Pierre Prat and Ayaka Shoda and Matteo Tacca and Ryutaro Takahashi and Henning Vahlbruch and Marco Vardaro and Chien-Ming Wu and Matteo Barsuglia and Raffaele Flaminio",
note = "Funding Information: We thank the Advanced Technology Center (ATC) of NAOJ for its support. This work was supported by the JSPS Grant-in-Aid for Scientific Research (Grants Nos. 15H02095, 18H01235, and 21H04476), the LabEx UnivEarthS (ANR-10-LABX-0023 and ANR-18-IDEX-0001), and the EU Horizon 2020 Research and Innovation Program under the Marie Sklodowska-Curie Grant Agreement No. 734303 (NEWS) and 101003460 and GA 101003460 (PROBES). N. A. was supported by the JSPS Grant-in-Aid for Scientific Research (Grant No. 18H01224), the JSPS Grant-in-Aid for Challenging Research (Exploratory) (Grant No. 18K18763), and the JST CREST (Grant No. JPMJCR1873). E. C., M. E., and M. P. were supported by the JSPS Grant-in-Aid for JSPS Fellows (Grants Nos. 18F18024, 20F20803, and 20F20713), respectively. H. L. and H. V. were supported by the Deutsche Forschungsgemeinschaft (DFG, German Research Foundation) under Germany{\textquoteright}s Excellence Strategy—EXC 2123 QuantumFrontiers—390837967. ",
year = "2022",
month = nov,
day = "10",
doi = "10.1103/physrevd.106.102003",
language = "English",
volume = "106",
journal = "Physical Review D",
issn = "2470-0029",
publisher = "American Institute of Physics",
number = "10",
}