Direct measurement of absorption-induced wavefront distortion in high optical power systems

Document #:

LIGO-P080089-x0

Document type:

P - Publications

Abstract:

Wavefront distortion due to absorption in the substrates and coatings of mirrors in advanced gravitational wave interferometers has the potential to compromise the operation and sensitivity of these interferometers [Opt. Lett.29, 2635-2637 (2004)OPLEDP0146-959210.1364/OL.29.002635]. We report the first direct spatially-resolved measurement, to our knowledge, of such wavefront distortion in a high optical power cavity. The measurement was made using an ultrahigh sensitivity Hartmann wavefront sensor on a dedicated test facility. The sensitivity of the sensor was λ/730, where λ=800 nm.

Files in Document:

• P080089-00.pdf (443.6 kB)

Topics:

• Document Migration from the old DCC
• Public relations

Authors:

• Jesper Munch
• Yaohui Fan
• Chunnong Zhao
• Peter Veitch
• Jerome Degallaix
• Aidan Brooks
• David Blair
• Phil Willems
• David Hosken
• Bram Slagmolen
• Zewu Yan
• Li Ju

Notes and Changes:

Rev P080089-00-Z:
- Full document number: LIGO-P080089-00-Z
- Author(s): A. Brooks; D. Hosken; Jesper Munch; P. Veitch; Zewu Yan; C Zhao; Y. Fan; Ju Li; David Blair; Phil Willems; Bram Slagmolen
- Document date: 2008-08-18
- Document received date: 2008-08-18
- Document entry date: 2008-08-18

Journal References:

Published in Appl Opt vol. 48 pg. 355-364.

Publication Information:

http://www.opticsinfobase.org/abstract.cfm?uri=ao-48-2-355