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16 September 2015 Design of the iLocater acquisition camera demonstration system
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Abstract
Existing planet-finding spectrometers are limited by systematic errors that result from their seeing-limited design. Of particular concern is the use of multi-mode fibers (MMFs), which introduce modal noise and accept significant amounts of background radiation from the sky. We present the design of a single-mode fiber-based acquisition camera for a diffraction-limited spectrometer named “iLocater." By using the “extreme" adaptive optics (AO) system of the Large Binocular Telescope (LBT), iLocater will overcome the limitations that prevent Doppler instruments from reaching their full potential, allowing precise radial velocity (RV) measurements of terrestrial planets around nearby bright stars. The instrument presented in this paper, which we refer to as the acquisition camera “demonstration system," will measure on-sky single-mode fiber (SMF) coupling efficiency using one of the 8.4m primaries of the LBT in fall 2015.
© (2015) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Andrew Bechter, Jonathan Crass, Ryan Ketterer, Justin R. Crepp, David King, Bo Zhao, Robert Reynolds, Phil Hinz, Jack Brooks, and Eric Bechter "Design of the iLocater acquisition camera demonstration system", Proc. SPIE 9605, Techniques and Instrumentation for Detection of Exoplanets VII, 96051U (16 September 2015); https://doi.org/10.1117/12.2188426
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