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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Editor: Joseph N. Mait
  • Vol. 48, Iss. 4 — Feb. 1, 2009
  • pp: B23–B31

Advances in generation of high-repetition-rate burst mode laser output

Naibo Jiang, Matthew C. Webster, and Walter R. Lempert  »View Author Affiliations


Applied Optics, Vol. 48, Issue 4, pp. B23-B31 (2009)
http://dx.doi.org/10.1364/AO.48.000B23


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Abstract

It is demonstrated that the incorporation of variable pulse duration flashlamp power supplies into an Nd:YAG burst mode laser system results in very substantial increases in the realizable energy per pulse, the total pulse train length, and uniformity of the intensity envelope. As an example, trains of 20 pulses at burst frequencies of 50 and 20 kHz are demonstrated with individual pulse energy at 1064 nm of 220 and 400 mJ , respectively. Conversion efficiency to the second- ( 532 nm ) and third- ( 355 nm ) harmonic wavelengths of 50 % and 35–40%, respectively, is also achieved. Use of the third-harmonic output of the burst mode laser as a pump source for a simple, home built optical parametric oscillator (OPO) produces pulse trains of broadly wavelength tunable output. Sum-frequency mixing of OPO signal output at 622 nm with residual output from the 355 nm pump beam is shown to produce uniform bursts of tunable output at 226 nm , with individual pulse energy of 0.5 mJ . Time-correlated NO planar laser induced fluorescence (PLIF) image sequences are obtained in a Mach 3 wind tunnel at 500 kHz , representing, to our knowledge, the first demonstration of NO PLIF imaging at repetition rates exceeding tens of hertz.

© 2008 Optical Society of America

OCIS Codes
(120.1740) Instrumentation, measurement, and metrology : Combustion diagnostics
(190.4970) Nonlinear optics : Parametric oscillators and amplifiers
(190.7110) Nonlinear optics : Ultrafast nonlinear optics
(280.2490) Remote sensing and sensors : Flow diagnostics

History
Original Manuscript: July 10, 2008
Manuscript Accepted: September 2, 2008
Published: October 20, 2008

Citation
Naibo Jiang, Matthew C. Webster, and Walter R. Lempert, "Advances in generation of high-repetition-rate burst mode laser output," Appl. Opt. 48, B23-B31 (2009)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-48-4-B23

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