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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Editor: Joseph N. Mait
  • Vol. 50, Iss. 4 — Feb. 1, 2011
  • pp: 399–404

Miniaturized, high-power diode-pumped, Q-switched Nd:YAG laser oscillator–amplifier

Peter Peuser, Willi Platz, and Gerhard Holl  »View Author Affiliations


Applied Optics, Vol. 50, Issue 4, pp. 399-404 (2011)
http://dx.doi.org/10.1364/AO.50.000399


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Abstract

A miniaturized, passively Q-switched Nd:YAG laser oscillator–power amplifier is reported, which is axially pumped by a compact, fiber-coupled, high-power, quasi-cw diode laser module. The pumping intensity of the oscillator crystal can be adjusted independently of the pumping intensity of the amplifier. This ensures that the oscillator pulse enters the amplifier when its maximum population density is reached. Furthermore, pulse bursts can be generated with a definite, adjustable number of single pulses. Maximum pulse energies of 8.4 and 22 mJ were achieved for a single pulse and for a pulse burst, respectively, at a pumping power of 470 W . The pulse widths were 2 ns , whereas the beam quality corresponded to M 2 < 1.5 . The laser is appropriate for scaling the power to the 10 MW range. Operation by using a 100 m pumping fiber was demonstrated.

© 2011 Optical Society of America

OCIS Codes
(140.3280) Lasers and laser optics : Laser amplifiers
(140.3480) Lasers and laser optics : Lasers, diode-pumped
(140.3530) Lasers and laser optics : Lasers, neodymium
(140.3540) Lasers and laser optics : Lasers, Q-switched

ToC Category:
Lasers and Laser Optics

History
Original Manuscript: June 16, 2010
Revised Manuscript: October 26, 2010
Manuscript Accepted: November 26, 2010
Published: January 26, 2011

Citation
Peter Peuser, Willi Platz, and Gerhard Holl, "Miniaturized, high-power diode-pumped, Q-switched Nd:YAG laser oscillator–amplifier," Appl. Opt. 50, 399-404 (2011)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-50-4-399


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References

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