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Optics Letters

Optics Letters

| RAPID, SHORT PUBLICATIONS ON THE LATEST IN OPTICAL DISCOVERIES

  • Editor: Alan E. Willner
  • Vol. 36, Iss. 14 — Jul. 15, 2011
  • pp: 2746–2748

Translational, rotational, and vibrational coupling into phase in diffractively coupled optical cavities

B. W. Barr, M. P. Edgar, J. Nelson, M. V. Plissi, S. H. Huttner, B. Sorazu, K. A. Strain, O. Burmeister, M. Britzger, D. Friedrich, R. Schnabel, K. Danzmann, J. Hallam, A. Freise, T. Clausnitzer, F. Brückner, E.-B. Kley, and A. Tünnermann  »View Author Affiliations


Optics Letters, Vol. 36, Issue 14, pp. 2746-2748 (2011)
http://dx.doi.org/10.1364/OL.36.002746


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Abstract

All-reflective optical systems are under consideration for future gravitational wave detector topologies. A key feature of these all-reflective systems is the use of Fabry–Perot cavities with diffraction gratings as input couplers; however, theory predicts and experiment has shown that translation of the grating surface across the incident laser light will introduce additional phase into the system. This translation can be induced through simple side-to-side motion of the coupler, yaw motion of the coupler around a central point (i.e., rotation about a vertical axis), and even via internal resonances (i.e., vibration) of the optical element. In this Letter we demonstrate on a prototype-scale suspended cavity that conventional cavity length-sensing techniques used to detect longitudinal changes along the cavity axis will also be sensitive to translational, rotational, and vibrational motion of the diffractive input coupler. We also experimentally verify the amplitude response and frequency dependency of the noise coupling as given by theory.

© 2011 Optical Society of America

OCIS Codes
(050.1970) Diffraction and gratings : Diffractive optics
(050.2230) Diffraction and gratings : Fabry-Perot
(120.2230) Instrumentation, measurement, and metrology : Fabry-Perot
(120.3180) Instrumentation, measurement, and metrology : Interferometry
(120.5700) Instrumentation, measurement, and metrology : Reflection
(230.1950) Optical devices : Diffraction gratings

ToC Category:
Diffraction and Gratings

History
Original Manuscript: April 29, 2011
Revised Manuscript: June 16, 2011
Manuscript Accepted: June 17, 2011
Published: July 14, 2011

Citation
B. W. Barr, M. P. Edgar, J. Nelson, M. V. Plissi, S. H. Huttner, B. Sorazu, K. A. Strain, O. Burmeister, M. Britzger, D. Friedrich, R. Schnabel, K. Danzmann, J. Hallam, A. Freise, T. Clausnitzer, F. Brückner, E.-B. Kley, and A. Tünnermann, "Translational, rotational, and vibrational coupling into phase in diffractively coupled optical cavities," Opt. Lett. 36, 2746-2748 (2011)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-36-14-2746

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