Optical fiber modal noise in the 0.8 to 1.5 micron region and implications for near infrared precision radial velocity measurements

Keegan S. McCoy; Lawrence Ramsey; Suvrath Mahadevan; Samuel Halverson; Stephen L. Redman

doi:10.1117/12.926287

Optical fiber modal noise in the 0.8 to 1.5 micron region and implications for near infrared precision radial velocity measurements

Keegan S. McCoy, Lawrence Ramsey, Suvrath Mahadevan, Samuel Halverson, Stephen L. Redman

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

36 Scopus citations

Abstract

Modal noise in fibers has been shown to limit the signal-to-noise ratio achievable in fiber-coupled, high-resolution spectrographs if it is not mitigated via modal scrambling techniques. Modal noise become significantly more important as the wavelength increases and presents a risk to the new generation of near-infrared precision radial spectrographs under construction or being proposed to search for planets around cool M-dwarf stars, which emit most of their light in the NIR. We present experimental results of tests at Penn State University characterizing modal noise in the far visible out to 1.5 microns and the degree of modal scrambling we obtained using mechanical scramblers. These efforts are part of a risk mitigation effort for the Habitable Zone Planet Finder spectrograph currently under development at Penn State University.

Original language	English (US)
Title of host publication	Ground-Based and Airborne Instrumentation for Astronomy IV
DOIs	https://doi.org/10.1117/12.926287
State	Published - 2012
Event	Ground-Based and Airborne Instrumentation for Astronomy IV - Amsterdam, Netherlands Duration: Jul 1 2012 → Jul 6 2012

Publication series

Name	Proceedings of SPIE - The International Society for Optical Engineering
Volume	8446
ISSN (Print)	0277-786X

Other

Other	Ground-Based and Airborne Instrumentation for Astronomy IV
Country/Territory	Netherlands
City	Amsterdam
Period	7/1/12 → 7/6/12

All Science Journal Classification (ASJC) codes

Electronic, Optical and Magnetic Materials
Condensed Matter Physics
Computer Science Applications
Applied Mathematics
Electrical and Electronic Engineering

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10.1117/12.926287

Cite this

McCoy, K. S., Ramsey, L., Mahadevan, S., Halverson, S., & Redman, S. L. (2012). Optical fiber modal noise in the 0.8 to 1.5 micron region and implications for near infrared precision radial velocity measurements. In Ground-Based and Airborne Instrumentation for Astronomy IV Article 84468J (Proceedings of SPIE - The International Society for Optical Engineering; Vol. 8446). https://doi.org/10.1117/12.926287

@inproceedings{10b3b28508354266a1932876b05e95fa,

title = "Optical fiber modal noise in the 0.8 to 1.5 micron region and implications for near infrared precision radial velocity measurements",

abstract = "Modal noise in fibers has been shown to limit the signal-to-noise ratio achievable in fiber-coupled, high-resolution spectrographs if it is not mitigated via modal scrambling techniques. Modal noise become significantly more important as the wavelength increases and presents a risk to the new generation of near-infrared precision radial spectrographs under construction or being proposed to search for planets around cool M-dwarf stars, which emit most of their light in the NIR. We present experimental results of tests at Penn State University characterizing modal noise in the far visible out to 1.5 microns and the degree of modal scrambling we obtained using mechanical scramblers. These efforts are part of a risk mitigation effort for the Habitable Zone Planet Finder spectrograph currently under development at Penn State University.",

author = "McCoy, {Keegan S.} and Lawrence Ramsey and Suvrath Mahadevan and Samuel Halverson and Redman, {Stephen L.}",

year = "2012",

doi = "10.1117/12.926287",

language = "English (US)",

isbn = "9780819491473",

series = "Proceedings of SPIE - The International Society for Optical Engineering",

booktitle = "Ground-Based and Airborne Instrumentation for Astronomy IV",

}

McCoy, KS, Ramsey, L, Mahadevan, S, Halverson, S & Redman, SL 2012, Optical fiber modal noise in the 0.8 to 1.5 micron region and implications for near infrared precision radial velocity measurements. in Ground-Based and Airborne Instrumentation for Astronomy IV., 84468J, Proceedings of SPIE - The International Society for Optical Engineering, vol. 8446, Ground-Based and Airborne Instrumentation for Astronomy IV, Amsterdam, Netherlands, 7/1/12. https://doi.org/10.1117/12.926287

Optical fiber modal noise in the 0.8 to 1.5 micron region and implications for near infrared precision radial velocity measurements. / McCoy, Keegan S.; Ramsey, Lawrence; Mahadevan, Suvrath et al.
Ground-Based and Airborne Instrumentation for Astronomy IV. 2012. 84468J (Proceedings of SPIE - The International Society for Optical Engineering; Vol. 8446).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

TY - GEN

T1 - Optical fiber modal noise in the 0.8 to 1.5 micron region and implications for near infrared precision radial velocity measurements

AU - McCoy, Keegan S.

AU - Ramsey, Lawrence

AU - Mahadevan, Suvrath

AU - Halverson, Samuel

AU - Redman, Stephen L.

PY - 2012

Y1 - 2012

N2 - Modal noise in fibers has been shown to limit the signal-to-noise ratio achievable in fiber-coupled, high-resolution spectrographs if it is not mitigated via modal scrambling techniques. Modal noise become significantly more important as the wavelength increases and presents a risk to the new generation of near-infrared precision radial spectrographs under construction or being proposed to search for planets around cool M-dwarf stars, which emit most of their light in the NIR. We present experimental results of tests at Penn State University characterizing modal noise in the far visible out to 1.5 microns and the degree of modal scrambling we obtained using mechanical scramblers. These efforts are part of a risk mitigation effort for the Habitable Zone Planet Finder spectrograph currently under development at Penn State University.

AB - Modal noise in fibers has been shown to limit the signal-to-noise ratio achievable in fiber-coupled, high-resolution spectrographs if it is not mitigated via modal scrambling techniques. Modal noise become significantly more important as the wavelength increases and presents a risk to the new generation of near-infrared precision radial spectrographs under construction or being proposed to search for planets around cool M-dwarf stars, which emit most of their light in the NIR. We present experimental results of tests at Penn State University characterizing modal noise in the far visible out to 1.5 microns and the degree of modal scrambling we obtained using mechanical scramblers. These efforts are part of a risk mitigation effort for the Habitable Zone Planet Finder spectrograph currently under development at Penn State University.

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M3 - Conference contribution

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T3 - Proceedings of SPIE - The International Society for Optical Engineering

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T2 - Ground-Based and Airborne Instrumentation for Astronomy IV

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Optical fiber modal noise in the 0.8 to 1.5 micron region and implications for near infrared precision radial velocity measurements

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