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Applied Optics

Applied Optics


  • Editor: James C. Wyant
  • Vol. 47, Iss. 18 — Jun. 20, 2008
  • pp: 3360–3363

Reflective attenuator for high-energy laser measurements

John H. Lehman, David Livigni, Xiaoyu Li, Christopher L. Cromer, and Marla L. Dowell  »View Author Affiliations

Applied Optics, Vol. 47, Issue 18, pp. 3360-3363 (2008)

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A high-energy laser attenuator in the range of 250 mJ ( 20 ns pulse width, 10 Hz repetition rate, 1064 nm wavelength) is described. The optical elements that constitute the attenuator are mirrors with relatively low reflectance, oriented at a 45 ° angle of incidence. By combining three pairs of mirrors, the incoming radiation is collinear and has the same polarization orientation as the exit. We present damage testing and polarization-dependent reflectance measurements for 1064 nm laser light at 45 ° angle of incidence for molybdenum, silicon carbide, and copper mirrors. A six element, 74 times ( 18 dB ) attenuator is presented as an example.

© 2008 Optical Society of America

OCIS Codes
(140.0140) Lasers and laser optics : Lasers and laser optics
(140.3330) Lasers and laser optics : Laser damage
(230.0230) Optical devices : Optical devices

ToC Category:
Lasers and Laser Optics

Original Manuscript: March 26, 2008
Manuscript Accepted: May 5, 2008
Published: June 17, 2008

John H. Lehman, David Livigni, Xiaoyu Li, Christopher L. Cromer, and Marla L. Dowell, "Reflective attenuator for high-energy laser measurements," Appl. Opt. 47, 3360-3363 (2008)

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  1. X. Li, T. Scott, S. Yang, C. Cromer, and M. Dowell, “Nonlinearity measurements of high-power laser detectors at NIST,” J. Res. Natl. Inst. Stand. Technol. 109, 429-434 (2004).
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