Design of fibre optic beam delivery system for particle image velocimetry

R. D. Morgan; D. J. Anderson; J. D C Jones; W. Easson; C. Greated

Design of fibre optic beam delivery system for particle image velocimetry

R. D. Morgan, D. J. Anderson, J. D C Jones, W. Easson, C. Greated

School of Engineering & Physical Sciences

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

4 Citations (Scopus)

Abstract

We demonstrate the design of a fibre optic beam delivery system for particle image velocimetry (PIV) applications. The system is capable of transmitting pulse energies of about 10 mJ in 7 ns pulses from a frequency doubled and Q-switched Nd:YAG laser; it is hence suitable for use with high speed air flows. The fibre used has a fused silica core of diameter 400 µm, and is of the step index multimode type. The output beam quality is 800 mm-mrad. Through exploitation of intermodal dispersion in the fibre, intensity variations in the output from the fibre due to speckle are suppressed to a visibility of <7%.

Original language	English
Title of host publication	Proceedings of SPIE - The International Society for Optical Engineering
Pages	675-682
Number of pages	8
Volume	2052
Publication status	Published - 1993
Event	Fifth International Conference on Laser Anemometry - Koningshof, Veldhoven, Neth Duration: 23 Aug 1993 → 27 Aug 1993

Conference

Conference	Fifth International Conference on Laser Anemometry
City	Koningshof, Veldhoven, Neth
Period	23/08/93 → 27/08/93

Cite this

@inproceedings{79df269388514027b9e58aae896b3dce,

title = "Design of fibre optic beam delivery system for particle image velocimetry",

abstract = "We demonstrate the design of a fibre optic beam delivery system for particle image velocimetry (PIV) applications. The system is capable of transmitting pulse energies of about 10 mJ in 7 ns pulses from a frequency doubled and Q-switched Nd:YAG laser; it is hence suitable for use with high speed air flows. The fibre used has a fused silica core of diameter 400 µm, and is of the step index multimode type. The output beam quality is 800 mm-mrad. Through exploitation of intermodal dispersion in the fibre, intensity variations in the output from the fibre due to speckle are suppressed to a visibility of <7\%.",

author = "Morgan, \{R. D.\} and Anderson, \{D. J.\} and Jones, \{J. D C\} and W. Easson and C. Greated",

year = "1993",

language = "English",

isbn = "0819413119",

volume = "2052",

pages = "675--682",

booktitle = "Proceedings of SPIE - The International Society for Optical Engineering",

note = "Fifth International Conference on Laser Anemometry ; Conference date: 23-08-1993 Through 27-08-1993",

}

TY - GEN

T1 - Design of fibre optic beam delivery system for particle image velocimetry

AU - Morgan, R. D.

AU - Anderson, D. J.

AU - Jones, J. D C

AU - Easson, W.

AU - Greated, C.

PY - 1993

Y1 - 1993

N2 - We demonstrate the design of a fibre optic beam delivery system for particle image velocimetry (PIV) applications. The system is capable of transmitting pulse energies of about 10 mJ in 7 ns pulses from a frequency doubled and Q-switched Nd:YAG laser; it is hence suitable for use with high speed air flows. The fibre used has a fused silica core of diameter 400 µm, and is of the step index multimode type. The output beam quality is 800 mm-mrad. Through exploitation of intermodal dispersion in the fibre, intensity variations in the output from the fibre due to speckle are suppressed to a visibility of <7%.

AB - We demonstrate the design of a fibre optic beam delivery system for particle image velocimetry (PIV) applications. The system is capable of transmitting pulse energies of about 10 mJ in 7 ns pulses from a frequency doubled and Q-switched Nd:YAG laser; it is hence suitable for use with high speed air flows. The fibre used has a fused silica core of diameter 400 µm, and is of the step index multimode type. The output beam quality is 800 mm-mrad. Through exploitation of intermodal dispersion in the fibre, intensity variations in the output from the fibre due to speckle are suppressed to a visibility of <7%.

UR - https://www.scopus.com/pages/publications/0027192707

M3 - Conference contribution

SN - 0819413119

VL - 2052

SP - 675

EP - 682

BT - Proceedings of SPIE - The International Society for Optical Engineering

T2 - Fifth International Conference on Laser Anemometry

Y2 - 23 August 1993 through 27 August 1993

ER -

Design of fibre optic beam delivery system for particle image velocimetry

Abstract

Conference

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