DC readout experiment in Enhanced LIGO

Details DC readout experiment in Enhanced LIGO DC readout experiment in Enhanced LIGO

2011-10-13

arxiv.org/abs/1110.2815v2

Class. Quantum Grav. 29 (2012) 065005

Physics

Instrumentation and Detectors

Scientific paper

10.1088/0264-9381/29/6/065005

The two 4 km long gravitational wave detectors operated by the Laser Interferometer Gravitational-wave Observatory (LIGO) were modified in 2008 to read out the gravitational wave channel using the DC readout form of homodyne detection and to include an optical filter cavity at the output of the detector. As part of the upgrade to Enhanced LIGO, these modifications replaced the radio-frequency (RF) heterodyne system used previously. We describe the motivations for and the implementation of DC readout and the output mode cleaner in Enhanced LIGO. We present characterizations of the system, including measurements and models of the couplings of the noises from the laser source to the gravitational wave readout channel. We show that noise couplings using DC readout are improved over those for RF readout, and we find that the achieved shot-noise-limited sensitivity is consistent with modeled results.

Affiliated with

Also associated with

No associations

Rating

DC readout experiment in Enhanced LIGO does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with DC readout experiment in Enhanced LIGO, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and DC readout experiment in Enhanced LIGO will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-498382