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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 20, Iss. 27 — Dec. 17, 2012
  • pp: 28819–28828

A laser beam quality definition based on induced temperature rise

Harold C. Miller  »View Author Affiliations

Optics Express, Vol. 20, Issue 27, pp. 28819-28828 (2012)

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Laser beam quality metrics like M2 can be used to describe the spot sizes and propagation behavior of a wide variety of non-ideal laser beams. However, for beams that have been diffracted by limiting apertures in the near-field, or those with unusual near-field profiles, the conventional metrics can lead to an inconsistent or incomplete description of far-field performance. This paper motivates an alternative laser beam quality definition that can be used with any beam. The approach uses a consideration of the intrinsic ability of a laser beam profile to heat a material. Comparisons are made with conventional beam quality metrics. An analysis on an asymmetric Gaussian beam is used to establish a connection with the invariant beam propagation ratio.

© 2012 OSA

OCIS Codes
(120.4800) Instrumentation, measurement, and metrology : Optical standards and testing
(120.6810) Instrumentation, measurement, and metrology : Thermal effects
(140.3295) Lasers and laser optics : Laser beam characterization

ToC Category:
Physical Optics

Original Manuscript: September 14, 2012
Revised Manuscript: November 12, 2012
Manuscript Accepted: November 24, 2012
Published: December 12, 2012

Harold C. Miller, "A laser beam quality definition based on induced temperature rise," Opt. Express 20, 28819-28828 (2012)

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  1. A. E. Siegman, “How to (maybe) measure laser beam quality,” in DPSS (Diode Pumped Solid State) Lasers: Applications and Issues, M. Dowley, ed., 17, OSA Trends in Optics and Photonics (OSA, 1998), paper MQ1.
  2. C. X. Yu, S. J. Augst, S. M. Redmond, K. C. Goldizen, D. V. Murphy, A. Sanchez, and T. Y. Fan, “Coherent combining of a 4 kW, eight-element fiber amplifier array,” Opt. Lett.36(14), 2686–2688 (2011). [CrossRef] [PubMed]
  3. J. M. Slater and B. Edwards, “Characterization of high power lasers,” Proc. SPIE7686, 76860W, 76860W-12 (2010). [CrossRef]
  4. M. Lax, “Temperature rise induced by a laser beam,” J. Appl. Phys.48(9), 3919–3924 (1977). [CrossRef]
  5. M. Lax, “Temperature rise induced by a laser beam II. the nonlinear case,” Appl. Phys. Lett.33(8), 786–788 (1978). [CrossRef]
  6. Y. Lu, “Square-shaped temperature distribution induced by a Gaussian-shaped laser beam,” Appl. Surf. Sci.81(3), 357–364 (1994). [CrossRef]
  7. Y. I. Nissim, A. Lietoila, R. B. Gold, and J. F. Gibbons, “Temperature distributions produced in semiconductors by a scanning elliptical or circular cw laser beam,” J. Appl. Phys.51(1), 274–279 (1980). [CrossRef]
  8. J. E. Moody and R. H. Hendel, “Temperature profiles induced by a scanning cw laser beam,” J. Appl. Phys.53(6), 4364–4371 (1982). [CrossRef]
  9. International Standards Organization, “Lasers and laser-related equipment-test methods for laser beam widths, divergence angles and beam propagation ratios. part 2: general astigmatic beams,” Ref. ISO 11146–2:2005(E) (2005).

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