Status of advanced ground-based laser interferometers for gravitational-wave detection

TL;DR

This paper reviews the development, current status, and technological advancements of ground-based laser interferometers for gravitational-wave detection, highlighting the progress of major detectors worldwide over the past decade.

Contribution

It provides a comprehensive overview of the design, upgrades, and status of the four main gravitational-wave detectors, emphasizing advanced technologies and ongoing improvements.

Findings

Initial detectors completed data collection by 2010

Major upgrades and new detectors are enhancing sensitivity

Global network of detectors is advancing gravitational-wave astronomy

Abstract

Ground-based laser interferometers for gravitational-wave (GW) detection were first constructed starting 20 years ago and as of 2010 collection of several years' worth of science data at initial design sensitivities was completed. Upgrades to the initial detectors together with construction of brand new detectors are ongoing and feature advanced technologies to improve the sensitivity to GWs. This conference proceeding provides an overview of the common design features of ground-based laser interferometric GW detectors and establishes the context for the status updates of each of the four gravitational-wave detectors around the world: Advanced LIGO, Advanced Virgo, GEO600 and KAGRA.