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Optics Letters

Optics Letters

| RAPID, SHORT PUBLICATIONS ON THE LATEST IN OPTICAL DISCOVERIES

  • Vol. 29, Iss. 22 — Nov. 15, 2004
  • pp: 2635–2637

Active correction of thermal lensing through external radiative thermal actuation

Ryan Lawrence, David Ottaway, Michael Zucker, and Peter Fritschel  »View Author Affiliations


Optics Letters, Vol. 29, Issue 22, pp. 2635-2637 (2004)
http://dx.doi.org/10.1364/OL.29.002635


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Abstract

Absorption of laser beam power in optical elements induces thermal gradients that may cause unwanted phase aberrations. In precision measurement applications, such as laser interferometric gravitational-wave detection, corrective measures that require mechanical contact with or attachments to the optics are precluded by noise considerations. We describe a radiative thermal corrector that can counteract thermal lensing and (or) thermoelastic deformation induced by coating and substrate absorption of collimated Gaussian beams. This radiative system can correct anticipated distortions to a high accuracy, at the cost of an increase in the average temperature of the optic. A quantitative analysis and parameter optimization is supported by results from a simplified proof-of-principle experiment, demonstrating the method's feasibility for our intended application.

© 2004 Optical Society of America

OCIS Codes
(010.1080) Atmospheric and oceanic optics : Active or adaptive optics
(140.3300) Lasers and laser optics : Laser beam shaping
(140.6810) Lasers and laser optics : Thermal effects
(190.4870) Nonlinear optics : Photothermal effects

Citation
Ryan Lawrence, David Ottaway, Michael Zucker, and Peter Fritschel, "Active correction of thermal lensing through external radiative thermal actuation," Opt. Lett. 29, 2635-2637 (2004)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-29-22-2635

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