Long-term operation of a laser frequency comb with the Habitable Zone Planet Finder

Connor Fredrick; Andrew J. Metcalf; Scott A. Diddams; Suvrath Mahadevan; Chad F. Bender; Sam P. Halverson; Fred Hearty; Joe P. Ninan; Arpita Roy; Guðmundur K. Stefánsson; Ryan C. Terrien

doi:10.1117/12.2563008

13 December 2020 Long-term operation of a laser frequency comb with the Habitable Zone Planet Finder

Connor Fredrick, Andrew J. Metcalf, Scott A. Diddams, Suvrath Mahadevan, Chad F. Bender, Sam P. Halverson, Fred Hearty, Joe P. Ninan, Arpita Roy, Guðmundur K. Stefánsson, Ryan C. Terrien

Author Affiliations +

Proceedings Volume 11447, Ground-based and Airborne Instrumentation for Astronomy VIII; 114473V (2020) https://doi.org/10.1117/12.2563008
Event: SPIE Astronomical Telescopes + Instrumentation, 2020, Online Only

Conference Poster

Abstract

Laser frequency combs are an ideal calibration source for precision astronomical spectrographs. We report on the demonstrated long term operation of a laser frequency comb that we designed and built as the primary calibrator for the Habitable Zone Planet Finder (HPF). The core technology of the comb is based on robust, polarization maintaining fiber coupled electro-optic modulators and broadband supercontinuum generation spanning 700-1600 nm in an efficient silicon nitride waveguide. The comb is continuously maintained on and ready to use, and since May 2018 the laser frequency comb has had a total uptime of 97%.

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Connor Fredrick, Andrew J. Metcalf, Scott A. Diddams, Suvrath Mahadevan, Chad F. Bender, Sam P. Halverson, Fred Hearty, Joe P. Ninan, Arpita Roy, Guðmundur K. Stefánsson, and Ryan C. Terrien "Long-term operation of a laser frequency comb with the Habitable Zone Planet Finder", Proc. SPIE 11447, Ground-based and Airborne Instrumentation for Astronomy VIII, 114473V (13 December 2020); https://doi.org/10.1117/12.2563008

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