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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Editor: James C. Wyant
  • Vol. 46, Iss. 17 — Jun. 10, 2007
  • pp: 3432–3438

Optical fiber array for the delivery of high peak-power laser pulses for fluid flow measurements

Jonathan P. Parry, Jonathan D. Shephard, Martin J. Thomson, Mohammad R. Taghizadeh, Julian D. C. Jones, and Duncan P. Hand  »View Author Affiliations


Applied Optics, Vol. 46, Issue 17, pp. 3432-3438 (2007)
http://dx.doi.org/10.1364/AO.46.003432


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Abstract

Fiber delivery of 64.7 mJ laser pulses ( 6 ns duration) from a Q-switched Nd:YAG laser operating at 532 nm is demonstrated. A custom diffractive optical element was used to shape the laser beam and facilitate coupling into a linear fiber array. This launch arrangement achieves an improvement in launch efficiency compared with a circular fiber bundle evaluated in previous work and the delivery of higher pulse energies is demonstrated. The bundle is capable of delivering light of sufficient pulse energy and, importantly, with suitable focusability, to generate a thin light sheet for the fluid flow measurement technique of particle image velocimetry (PIV). Fiber delivery offers an advantage, in terms of optical access, for the application of PIV to enclosed measurement volumes, such as the cylinder of a combustion engine.

© 2007 Optical Society of America

OCIS Codes
(050.1970) Diffraction and gratings : Diffractive optics
(060.2310) Fiber optics and optical communications : Fiber optics
(120.3940) Instrumentation, measurement, and metrology : Metrology
(120.7250) Instrumentation, measurement, and metrology : Velocimetry

ToC Category:
Fiber Optics and Optical Communications

History
Original Manuscript: October 5, 2006
Revised Manuscript: January 16, 2007
Manuscript Accepted: February 6, 2007
Published: May 18, 2007

Citation
Jonathan P. Parry, Jonathan D. Shephard, Martin J. Thomson, Mohammad R. Taghizadeh, Julian D. C. Jones, and Duncan P. Hand, "Optical fiber array for the delivery of high peak-power laser pulses for fluid flow measurements," Appl. Opt. 46, 3432-3438 (2007)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-46-17-3432


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References

  1. T. J. Stephens, "Fibre-optic delivery of high peak power laser pulses for flow measurement," Ph.D. dissertation (Heriot-Watt University, 2003).
  2. T. J. StephensM. J. Haste, D. P. Towers, M. J. Thomson, M. R. Taghizadeh, J. D. C. Jones, and D. P. Hand, "Fiber optic delivery of high peak power Q-switched Nd:YAG laser pulses for in-cylinder flow measurement," Appl. Opt. 42, 4307-4314 (2003). [CrossRef] [PubMed]
  3. J. Westerweel, "Fundamentals of digital particle image velocimetry," Meas. Sci. Technol. 8, 1379-1392 (1997). [CrossRef]
  4. Y. Li, H. Zhao, Z. Peng, and N. Ladommatos, "Particle image velocimetry measurement of in-cylinder flow in internal combustion engines--experiment and flow structure analysis," Proc. Inst. Mech. Eng. , Part D (J. Automob. Eng.) 216, 65-81 (2002). [CrossRef]
  5. T. Geis, G. Rottenkolber, M. Dittmann, B. Richter, K. Dullenkopf, and S. Wittig, "Endoscopic PIV-measurements in an enclosed rotor-stator system with pre-swirled cooling air," presented at the 11th International Symposium on the Application of Laser Techniques to Flow Measurement (Gulbenkian Foundation, Lisbon, Portugal, 8-11 July 2002).
  6. U. Dierksheide, P. Meyer, T. Hovestadt, and W. Hentschel, "Endoscopic 2D-PIV flow field measurements in IC engines," presented at the Fourth International Symposium on Particle Image Velocimetry (Gottingen, Germany, 17-19 September 2001).
  7. F. Wyrowski and O. Bryngdaiil, "Iterative Fourier-transform algorithm applied to computer holography," J. Opt. Soc. Am. A 5, 1058-1065 (1988). [CrossRef]
  8. F. Wyrowski, "Diffractive optical elements: iterative calculation of quantized, blazed phase structures," J. Opt. Soc. Am. A 7, 961-969 (1990). [CrossRef]
  9. M. A. Seldowitz, J. P. Allebach, and D. W. Sweeney, "Synthesis of digital holograms by direct binary search," Appl. Opt. 26, 2788-2798 (1987). [CrossRef] [PubMed]
  10. M. J. Thomson and M. R. Taghizadeh, "Design and fabrication of Fourier plane diffractive optical elements for high-power fibre-coupling applications," Opt. Lasers Eng. 43, 671-681 (2005). [CrossRef]
  11. M. J. Thomson, J. Liu, and M. R. Taghizadeh, "Iterative algorithm for the design of free-space diffractive optical elements for fiber coupling," Appl. Opt. 43, 1996-1999 (2004). [CrossRef] [PubMed]
  12. D. P. Hand, J. D. Entwistle, R. R. J. Maier, A. Kuhn, C. A. Greated, and J. D. C. Jones, "Fibre optic beam delivery system for high peak power laser PIV illumination," Meas. Sci. Technol. 10, 239-245 (1999). [CrossRef]
  13. M. J. Thomson and M. R. Taghizadeh, "Diffractive elements for high-power fibre coupling applications," J. Mod. Opt. 50, 1691-1699 (2003).

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