ETpathfinder: a cryogenic testbed for interferometric gravitational-wave detectors
arXiv:2206.04905 · doi:10.1088/1361-6382/ac8fdb
Abstract
The third-generation of gravitational wave observatories, such as the Einstein Telescope (ET) and Cosmic Explorer (CE), aim for an improvement in sensitivity of at least a factor of ten over a wide frequency range compared to the current advanced detectors. In order to inform the design of the third-generation detectors and to develop and qualify their subsystems, dedicated test facilities are required. ETpathfinder prototype uses full interferometer configurations and aims to provide a high sensitivity facility in a similar environment as ET. Along with the interferometry at 1550 nm and silicon test masses, ETpathfinder will focus on cryogenic technologies, lasers and optics at 2090 nm and advanced quantum-noise reduction schemes. This paper analyses the underpinning noise contributions and combines them into full noise budgets of the two initially targeted configurations: 1) operating with 1550 nm laser light and at a temperature of 18 K and 2) operating at 2090 nm wavelength and a temperature of 123 K.
References in corpus (33)
- GW170817: Observation of Gravitational Waves from a Binary Neutron Star Inspiral
- Advanced Virgo: a 2nd generation interferometric gravitational wave detector
- Advanced LIGO
- GWTC-3: Compact Binary Coalescences Observed by LIGO and Virgo During the Second Part of the Third Observing Run
- GW190521: A Binary Black Hole Merger with a Total Mass of
- A gravitational-wave standard siren measurement of the Hubble constant
- Sensitivity Studies for Third-Generation Gravitational Wave Observatories
- Spectroscopic identification of r-process nucleosynthesis in a double neutron star merger
- Superluminal motion of a relativistic jet in the neutron star merger GW170817
- Internal thermal noise in the LIGO test masses : a direct approach
- Thermal noise in interferometric gravitational wave detectors due to dielectric optical coatings
- Squeezed light at 1550 nm with a quantum noise reduction of 12.3 dB
- Thermodynamical fluctuations and photo-thermal shot noise in gravitational wave antennae
- A Cryogenic Silicon Interferometer for Gravitational-wave Detection
- Quantum Measurement Theory in Gravitational-Wave Detectors
- A Xylophone Configuration for a third Generation Gravitational Wave Detector
- Seismic gravity-gradient noise in interferometric gravitational-wave detectors
- A Mock Data Challenge for the Einstein Gravitational-Wave Telescope
- Thermoelastic Noise and Homogeneous Thermal Noise in Finite Sized Gravitational-Wave Test Masses
- Metrics for next-generation gravitational-wave detectors
- Thermoelastic effects at low temperatures and quantum limits in displacement measurements
- Mechanical loss in state-of-the-art amorphous optical coatings
- Terrestrial Gravity Fluctuations
- Brownian Thermal Noise in Multilayer Coated Mirrors
- Gas damping force noise on a macroscopic test body in an infinite gas reservoir
- Multi-Material Coatings with Reduced Thermal Noise
- Thermal Noise Reduction and Absorption Optimisation via Multi-Material Coatings
- Corner reflectors and Quantum-Non-Demolition Measurements in gravitational wave antennae
- Brownian force noise from molecular collisions and the sensitivity of advanced gravitational wave observatories
- Suspensions Thermal Noise in the LIGO Gravitational Wave Detector
- Second Einstein Telescope Mock Science Challenge : Detection of the GW Stochastic Background from Compact Binary Coalescences
- Overview of KAGRA: Detector design and construction history
- Building blocks for future detectors: Silicon test masses and 1550 nm laser light
Cited by in corpus (7)
- The CosmoVerse White Paper: Addressing observational tensions in cosmology with systematics and fundamental physics
- Substrate-transferred GaAs/AlGaAs crystalline coatings for gravitational-wave detectors: A review of the state of the art
- The payload of the Lunar Gravitational-wave Antenna
- Enhanced optomechanical interaction in the unbalanced interferometer
- Mechanical Characterisation of Silicon for the ETpathfinder Test Masses
- Design and optimisation of linear variable differential transformers and voice coil actuators using finite element analysis: a methodical approach to enhance sensor response and actuation force
- Reducing suspension control noise with interferometric sensors -- an experimental concept