On-sky single-mode fiber coupling measurements at the Large Binocular Telescope

Andrew Bechter; Jonathan Crass; Ryan Ketterer; Justin R. Crepp; Robert O. Reynolds; Eric Bechter; Philip Hinz; Fernando Pedichini; Michael Foley; Elliott Runburg; Eleanya E. Onuma; Scott Gaudi; Giuseppina Micela; Isabella Pagano; Charles E. Woodward

doi:10.1117/12.2233153

On-sky single-mode fiber coupling measurements at the Large Binocular Telescope

Andrew Bechter, Jonathan Crass, Ryan Ketterer, Justin R. Crepp, Robert O. Reynolds, Eric Bechter, Philip Hinz, Fernando Pedichini, Michael Foley, Elliott Runburg, Eleanya E. Onuma, Scott Gaudi, Giuseppina Micela, Isabella Pagano, Charles E. Woodward

Physics and Astronomy (Twin Cities)

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

22 Scopus citations

Abstract

The demonstration of efficient single-mode fiber (SMF) coupling is a key requirement for the development of a compact, ultra-precise radial velocity (RV) spectrograph. iLocater is a next generation instrument for the Large Binocular Telescope (LBT) that uses adaptive optics (AO) to inject starlight into a SMF. In preparation for commissioning iLocater, a prototype SMF injection system was installed and tested at the LBT in the Y-band (0.970-1.065 μm). This system was designed to verify the capability of the LBT AO system as well as characterize on-sky SMF coupling efficiencies. SMF coupling was measured on stars with variable airmasses, apparent magnitudes, and seeing conditions for six half-nights using the Large Binocular Telescope Interferometer. We present the overall optical and mechanical performance of the SMF injection system, including details of the installation and alignment procedure. A particular emphasis is placed on analyzing the instrument's performance as a function of telescope elevation to inform the final design of the fiber injection system for iLocater.

Original language	English (US)
Title of host publication	Adaptive Optics Systems V
Editors	Enrico Marchetti, Jean-Pierre Veran, Laird M. Close
Publisher	SPIE
ISBN (Electronic)	9781510601970
DOIs	https://doi.org/10.1117/12.2233153
State	Published - 2016
Event	Adaptive Optics Systems V - Edinburgh, United Kingdom Duration: Jun 26 2016 → Jul 1 2016

Publication series

Name	Proceedings of SPIE - The International Society for Optical Engineering
Volume	9909
ISSN (Print)	0277-786X
ISSN (Electronic)	1996-756X

Other

Other	Adaptive Optics Systems V
Country/Territory	United Kingdom
City	Edinburgh
Period	6/26/16 → 7/1/16

Bibliographical note

Publisher Copyright:
© 2016 SPIE.

Keywords

Adaptive Optics
Fiber Optics
ILocater
Large Binocular Telescope
Single-Mode Fibers

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10.1117/12.2233153

http://hdl.handle.net/10150/622009

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Bechter, A., Crass, J., Ketterer, R., Crepp, J. R., Reynolds, R. O., Bechter, E., Hinz, P., Pedichini, F., Foley, M., Runburg, E., Onuma, E. E., Gaudi, S., Micela, G., Pagano, I., & Woodward, C. E. (2016). On-sky single-mode fiber coupling measurements at the Large Binocular Telescope. In E. Marchetti, J.-P. Veran, & L. M. Close (Eds.), Adaptive Optics Systems V Article 99092X (Proceedings of SPIE - The International Society for Optical Engineering; Vol. 9909). SPIE. https://doi.org/10.1117/12.2233153

On-sky single-mode fiber coupling measurements at the Large Binocular Telescope. / Bechter, Andrew; Crass, Jonathan; Ketterer, Ryan et al.
Adaptive Optics Systems V. ed. / Enrico Marchetti; Jean-Pierre Veran; Laird M. Close. SPIE, 2016. 99092X (Proceedings of SPIE - The International Society for Optical Engineering; Vol. 9909).

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

Bechter, A, Crass, J, Ketterer, R, Crepp, JR, Reynolds, RO, Bechter, E, Hinz, P, Pedichini, F, Foley, M, Runburg, E, Onuma, EE, Gaudi, S, Micela, G, Pagano, I & Woodward, CE 2016, On-sky single-mode fiber coupling measurements at the Large Binocular Telescope. in E Marchetti, J-P Veran & LM Close (eds), Adaptive Optics Systems V., 99092X, Proceedings of SPIE - The International Society for Optical Engineering, vol. 9909, SPIE, Adaptive Optics Systems V, Edinburgh, United Kingdom, 6/26/16. https://doi.org/10.1117/12.2233153

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AB - The demonstration of efficient single-mode fiber (SMF) coupling is a key requirement for the development of a compact, ultra-precise radial velocity (RV) spectrograph. iLocater is a next generation instrument for the Large Binocular Telescope (LBT) that uses adaptive optics (AO) to inject starlight into a SMF. In preparation for commissioning iLocater, a prototype SMF injection system was installed and tested at the LBT in the Y-band (0.970-1.065 μm). This system was designed to verify the capability of the LBT AO system as well as characterize on-sky SMF coupling efficiencies. SMF coupling was measured on stars with variable airmasses, apparent magnitudes, and seeing conditions for six half-nights using the Large Binocular Telescope Interferometer. We present the overall optical and mechanical performance of the SMF injection system, including details of the installation and alignment procedure. A particular emphasis is placed on analyzing the instrument's performance as a function of telescope elevation to inform the final design of the fiber injection system for iLocater.

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On-sky single-mode fiber coupling measurements at the Large Binocular Telescope

Abstract

Publication series

Other

Bibliographical note

Keywords

Access

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