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Proceedings Paper

Measuring the thermal sensitivity of a fiber Fabry-Pérot interferometer
Author(s): Jeff Jennings; Samuel Halverson; Scott A. Diddams; Ryan Terrien; Gabriel Ycas; Suvrath Mahadevan
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Paper Abstract

We introduce a general technique for frequency stability characterization of Fabry-Perot etalons that are being explored for astronomical spectrograph calibration. In our approach a frequency-stabilized laser frequency comb is employed as a reference for a scanning CW laser measurement of the temperature sensitivity of a fiber Fabry-Perot interferometer (FFP). For an in-house constructed, actively stabilized FFP, we observe the thermal sensitivity of a resonance mode at 1319 nm of ∼7.4 GHz C−1, which corresponds to a fractional thermal sensitivity of ∼3.2 × 10−5 C−1. We compare these results to a simple model and discuss further the materials construction and stabilization of the FFP. Our measurement technique is one step toward a broad characterization of Fabry-Perot instruments, and this FFP in particular is currently being investigated as a wavelength calibration source in precision radial velocity spectroscopy to discover terrestrial-mass exoplanets.

Paper Details

Date Published: 4 August 2016
PDF: 4 pages
Proc. SPIE 9907, Optical and Infrared Interferometry and Imaging V, 99072G (4 August 2016); doi: 10.1117/12.2231053
Show Author Affiliations
Jeff Jennings, National Institute of Standards and Technology (United States)
Univ. of Colorado, Boulder (United States)
Samuel Halverson, The Pennsylvania State Univ. (United States)
Scott A. Diddams, National Institute of Standards and Technology (United States)
Univ. of Colorado, Boulder (United States)
Ryan Terrien, National Institute of Standards and Technology (United States)
Gabriel Ycas, National Institute of Standards and Technology (United States)
Suvrath Mahadevan, The Pennsylvania State Univ. (United States)


Published in SPIE Proceedings Vol. 9907:
Optical and Infrared Interferometry and Imaging V
Fabien Malbet; Michelle J. Creech-Eakman; Peter G. Tuthill, Editor(s)

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