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

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 s...

Full description

Saved in:
Bibliographic Details
Published in:arXiv.org 2024-06
Main Authors: Hannah Tomio, Yang, Guangning, Leopardi, Holly F, Numata, Kenji, Yu, Anthony W, Attar, Andrew, Xu, Xiaozhen, Lu, Wei, Gramling, Cheryl, Sridharan, T K, Kurczynski, Peter
Format: Article
Language:English
Subjects:
Event horizon
LISA (antenna)
Low noise
Optical frequency
Stability
Very long base interferometry
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary: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, ultra-low 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.
ISSN:2331-8422
DOI:10.48550/arxiv.2406.10222