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Proceedings Paper

Engineering development of a directed IR countermeasure laser
Author(s): Victor Karaganov; Margaret Law; Mick Kaesler; David G. Lancaster; Mark R. G. Taylor
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Paper Abstract

There is currently considerable interest from the military and civil authorities in defences against man portable air defence systems. One such approach utilizes directing in-band modulated mid-infrared lasers at missile seekers to disrupt the missile tracking. The work presented here discusses some of the engineering issues associated with the development of such a laser system. The laser system is based on the MURLIN (Multi-band Research Laser INfrared). A prototype system has been developed based on a highly efficient diode laser pumped Nd: YAG co-planar folded slab laser that is frequency converted by cascaded optical parametric oscillators and an optical parametric amplifier. The water-cooled system produces up to 1.4 W of modulated power which is distributed across 3-lines in the 2-5 mm spectral region. The potential countermeasure utility of this system is enhanced by the single beam multi-line output and capability to directly modulate the pump diodes with a range of waveforms. The follow-on air-cooled version currently under development has recently achieved 8 W of modulated average power at the 1.064 mm pump wavelength. Measured beam quality is twice the diffraction limit.

Paper Details

Date Published: 29 December 2004
PDF: 6 pages
Proc. SPIE 5615, Technologies for Optical Countermeasures, (29 December 2004); doi: 10.1117/12.579933
Show Author Affiliations
Victor Karaganov, Tenix Defence Pty Ltd. (Australia)
Margaret Law, Tenix Defence Pty Ltd. (Australia)
Mick Kaesler, Tenix Defence Pty Ltd. (Australia)
David G. Lancaster, Defence Science and Technology Organisation (Australia)
Mark R. G. Taylor, Defence Science and Technology Organisation (Australia)


Published in SPIE Proceedings Vol. 5615:
Technologies for Optical Countermeasures
David H. Titterton, Editor(s)

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