Optical Detector Topology for Third-Generation Gravitational Wave Observatories

TL;DR

This paper reviews the design considerations for third-generation gravitational wave detectors, emphasizing new interferometer topologies and configurations to achieve significantly improved sensitivity for gravitational wave astronomy.

Contribution

It provides a comprehensive evaluation of potential detector geometries, topologies, and noise reduction schemes for future gravitational wave observatories.

Findings

Assessment of various detector topologies

Identification of promising configurations

Discussion of noise reduction strategies

Abstract

The third generation of gravitational wave observatories, aiming to provide 100 times better sensitivity than currently operating interferometers, is expected to establish the evolving field of gravitational wave astronomy. A key element for achieving the ambitious sensitivity goal is the exploration of new interferometer geometries, topologies and configurations. In this article we review the current status of the ongoing design work for third-generation gravitational wave observatories. The main focus is set on the evaluation of the detector geometry and detector topology. In addition we discuss some promising detector configurations and potential noise reduction schemes.