Ultra-low-noise laser and optical frequency comb-based timing system for the Black Hole Explorer (BHEX) mission

Hannah Tomio; Guangning Yang; Holly F. Leopardi; Kenji Numata; Anthony W. Yu; Andrew Attar; Xiaozhen Xu; Wei Lu; Cheryl Gramling; T. K. Sridharan; Peter Kurczynski

doi:10.1117/12.3020732

26 August 2024 Ultra-low-noise laser and optical frequency comb-based timing system for the Black Hole Explorer (BHEX) mission

Hannah Tomio, Guangning Yang, Holly F. Leopardi, Kenji Numata, Anthony W. Yu, Andrew Attar, Xiaozhen Xu, Wei Lu, Cheryl Gramling, T. K. Sridharan, Peter Kurczynski

Author Affiliations +

Proceedings Volume 13100, Advances in Optical and Mechanical Technologies for Telescopes and Instrumentation VI; 131000O (2024) https://doi.org/10.1117/12.3020732
Event: SPIE Astronomical Telescopes + Instrumentation, 2024, Yokohama, Japan

Abstract

In this effort, we demonstrate the performance of a highly stable time reference for the proposed Black Hole Explorer (BHEX) mission, a space-based extension to the Event Horizon Telescope (EHT) Very Long Baseline Interferometry (VLBI) project. This precision timing system is based on the use of a space-qualified, ultralow noise laser developed as part of the Laser Interferometer Space Antenna (LISA) mission as the timing reference, and an optical frequency comb to transfer the stability of this laser to the microwave regime for instrumentation use. We describe the implementation of this system and experimental setup to characterize the stability performance. We present the results of this experiment that demonstrate the performance of this system meets requirements for the BHEX mission.

Conference Presentation

Citation Download Citation

Hannah Tomio, Guangning Yang, Holly F. Leopardi, Kenji Numata, Anthony W. Yu, Andrew Attar, Xiaozhen Xu, Wei Lu, Cheryl Gramling, T. K. Sridharan, and Peter Kurczynski "Ultra-low-noise laser and optical frequency comb-based timing system for the Black Hole Explorer (BHEX) mission", Proc. SPIE 13100, Advances in Optical and Mechanical Technologies for Telescopes and Instrumentation VI, 131000O (26 August 2024); https://doi.org/10.1117/12.3020732

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