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Diffraction losses of a Fabry-Perot cavity with nonidentical non-spherical mirrors

Poplavskiy, Mikhail V. and Matsko, Andrey B. and Yamamoto, Hiroaki and Vyatchanin, Sergey P. (2020) Diffraction losses of a Fabry-Perot cavity with nonidentical non-spherical mirrors. Journal of Optics, 22 (11). Art. No. 115603. ISSN 2040-8978. doi:10.1088/2040-8986/abb58e.

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Optical cavities, with both optimized resonant conditions and high quality factors, are important metrological tools. In particular, they are used for laser gravitational wave (GW) detectors. In order to have high cavity powers in GW detectors, it is necessary to suppress the parametric instability and to reduce the loss in the arm caused by point absorbers by damping the resonant conditions of harmful higher order optical modes (HOOM). This can be achieved effectively by using non spherical mirrors in symmetric Fabry–Perot (FP) cavities by increasing roundtrip losses of HOOMs Ferdous F et al 2014 Phys. Rev. A 90 033826; Matsko A et al 2016 Phys. Rev. D 93 083010. FP cavities in most of the GW detectors have non-identical mirrors to optimize clipping losses and reduce thermal noise by reducing the beam size on one side of the cavity facing to the beam splitter and recycling cavities. We present here a general method to design non spherical non-identical mirrors in non-symmetric FP cavities to damp HOOMs. The proposed design allows us to suppress the loss of the arm power caused by point absorbers on test masses.

Item Type:Article
Related URLs:
URLURL TypeDescription Paper
Poplavskiy, Mikhail V.0000-0003-3954-6927
Vyatchanin, Sergey P.0000-0002-6823-911X
Additional Information:© 2020 IOP Publishing Ltd. Received 6 May 2020; Accepted 4 September 2020; Published 8 October 2020. M.P. and S.V. acknowledges support from Russian Foundation of Basic Research (Grant No. 19-29-11003) and from the TAPIR GIFT MSU Support of California Institute of Technology. The reported here research performed by A.M was carried out at the Jet Propulsion Laboratory, California Institute of Technology, under a contract with the National Aeronautics and Space Administration (80NM0018D0004). The LIGO Observatories were constructed by the California Institute of Technology and Massachusetts Institute of Technology with funding from the National Science Foundation under cooperative agreement PHY-9210038. The LIGO Laboratory operates under cooperative agreement PHY-1764464. This paper carries LIGO Document Number LIGO-P2000138.
Funding AgencyGrant Number
Russian Foundation for Basic Research19-29-11003
Other Numbering System:
Other Numbering System NameOther Numbering System ID
LIGO DocumentP2000138
Issue or Number:11
Classification Code:PACS: 95.55.Ym, 42.60.Da, 42.79.Bh, 42.65.Sf
Record Number:CaltechAUTHORS:20201014-134246146
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Official Citation:Mikhail V Poplavskiy et al 2020 J. Opt. 22 115603
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:106064
Deposited By: Tony Diaz
Deposited On:14 Oct 2020 21:02
Last Modified:12 Jul 2022 19:47

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