A fiber injection unit for the Keck Planet Finder: opto-mechanical design

Scott J. Lilley; Kodi Rider; Jim Thorne; Marc Kassis; Steve Gibson; Andrew Howard; Kyle Lanclos; Josh Walawender

doi:10.1117/12.2628818

29 August 2022 A fiber injection unit for the Keck Planet Finder: opto-mechanical design

Scott J. Lilley, Kodi Rider, Jim Thorne, Marc Kassis, Steve Gibson, Andrew Howard, Kyle Lanclos, Josh Walawender

Proceedings Volume 12184, Ground-based and Airborne Instrumentation for Astronomy IX; 121844K (2022) https://doi.org/10.1117/12.2628818
Event: SPIE Astronomical Telescopes + Instrumentation, 2022, Montréal, Québec, Canada

Conference Poster

Abstract

As part of the Keck Planet Finder (KPF) project, a Fiber Injection Unit (FIU) was implemented and will be deployed on the Keck Ⅰ telescope, with the aim of providing dispersion compensated and tip/tilt corrected light to the KPF instrument and accompanying H&K spectrometer. The goal of KPF is to characterize exoplanets via the radial velocity technique, with a single measurement precision of 30cm/s or better. To accomplish this, the FIU must provide a stable F-number and chief ray angle to the Science and Calcium H&K fibers. Our design approach was use a planar optical layout with atmospheric dispersion compensation for both the Science and Calcium H&K arms. A SWIR guider camera and piezo tip/tilt mirror are used to keep the target centered on the fibers.

Citation Download Citation

Scott J. Lilley, Kodi Rider, Jim Thorne, Marc Kassis, Steve Gibson, Andrew Howard, Kyle Lanclos, and Josh Walawender "A fiber injection unit for the Keck Planet Finder: opto-mechanical design", Proc. SPIE 12184, Ground-based and Airborne Instrumentation for Astronomy IX, 121844K (29 August 2022); https://doi.org/10.1117/12.2628818

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