English
 
Help Privacy Policy Disclaimer
  Advanced SearchBrowse

Item

ITEM ACTIONSEXPORT
Add to Basket
  Local TagsRelease HistoryDetailsSummary

Released
Journal Article

A novel concept for increasing the peak sensitivity of LIGO by detuning the arm cavities

MPS-Authors
/persons/resource/persons4336

Hild,  Stefan
Laser Interferometry & Gravitational Wave Astronomy, AEI-Hannover, MPI for Gravitational Physics, Max Planck Society;

Freise,  Andreas
Laser Interferometry & Gravitational Wave Astronomy, AEI-Hannover, MPI for Gravitational Physics, Max Planck Society;
AEI-Hannover, MPI for Gravitational Physics, Max Planck Society;

External Resource
No external resources are shared
Fulltext (restricted access)
There are currently no full texts shared for your IP range.
Fulltext (public)

cqg7_22_010.pdf
(Publisher version), 125KB

0709.1488v1.pdf
(Preprint), 140KB

Supplementary Material (public)
There is no public supplementary material available
Citation

Hild, S., & Freise, A. (2007). A novel concept for increasing the peak sensitivity of LIGO by detuning the arm cavities. Classical and Quantum Gravity, 24(22), 5453-5460. doi:10.1088/0264-9381/24/22/010.


Cite as: https://hdl.handle.net/11858/00-001M-0000-0013-4773-4
Abstract
We introduce a concept that uses detuned arm cavities to increase the shot-noise-limited sensitivity of LIGO without increasing the light power inside the arm cavities. Numerical simulations show an increased sensitivity between 125 and 400 Hz, with a maximal improvement of about 80% around 225 Hz, while the sensitivity above 400 Hz is decreased. Furthermore, our concept is found to give a sensitivity similar to that of a conventional RSE configuration with a signal-recycling mirror of moderate reflectivity. In the near future detuned arm cavities might be a beneficial alternative to RSE, due to the potentially less hardware-intensive implementation of the proposed concept.