Multi-Color Interferometry for Lock Acquisition of Laser Interferometric Gravitational-wave Detectors

Document #:

LIGO-G1300614-v1

Document type:

G - Presentations (eg Graphics)

Abstract:

A presentation file for the Stefano Braccini prize 2012 at Pisa on May of 2013.
Currently LIGO (Laser Interferometric Gravitational wave Observatory) is under a major upgrade and will be online possibly in 2014 aiming a first detection. A big challenge in this type of interferometer is to precisely bring all the optical resonant cavities to the resonance point (for example with a precision of less than 1 nm for the 4 km cavities of LIGO). I will talk about an experimental demonstration of a new multicolor interferometric technique which employs auxiliary lasers in a different color from the main laser in order to aid the precision control.

Files in Document:

• G13000614_Stefano2012_izumi.pdf (7.6 MB)

Topics:

• Meeting

Authors:

• Kiwamu Izumi

Keywords:

aLIGO ISC ALS Thesis