Affiliation:
1. The University of Arizona
Abstract
The Laser Interferometer Space Antenna telescopes must exhibit an
optical path length stability of pm/Hz in the mHz observation band to meet
mission requirements. The optical truss interferometer is a proposed
method to aid in the ground testing of the telescopes, as well as a
risk-mitigation plan for flight units. This consists of three
Fabry–Perot cavities mounted to the telescope, which are used to
monitor structural displacements. We have designed and developed a
fiber-based cavity injection system that integrates fiber components,
mode matching optics, and a cavity input mirror into a compact input
stage. The input stages, paired with return mirror stages, can be
mounted to the telescope to form optical truss cavities. We performed
a thorough sensitivity analysis using various simulation methods to
support the fabrication and assembly of three first-generation
prototype cavities, each of which exhibited satisfactory performance
based on our models.
Funder
University of Florida
Goddard Space Flight Center
Subject
Atomic and Molecular Physics, and Optics,Engineering (miscellaneous),Electrical and Electronic Engineering
Cited by
1 articles.
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