Accession Number:

ADA346689

Title:

Laser Jamming in the 3 to 5 microns Wavelength Band

Descriptive Note:

Final rept.

Corporate Author:

FYSISCH EN ELEKTRONISCH LAB TNO THE HAGUE (NETHERLANDS)

Report Date:

1998-04-01

Pagination or Media Count:

38.0

Abstract:

The generation of 3 to 5 microns laser radiation and the required powers to jam IR-seekers were investigated in relation to a laser-jamming system. Sufficient powers were reached with two generation methods. The first method used difference frequency generation DFG to obtain 4.04 microns radiation using the mixing in LiNbO3 of 1.064 microns and 1.444 microns radiation, which were obtained from two NdYAG lasers. The second method used an OPO of BBO to generate tunable radiation around 1.4 microns that was used in the DFG setup to generate tunable 3 to 5 microns radiation. Measurements of the damage threshold of photodiodes confirmed the theoretical considerations that state that the order of magnitude of the damage threshold is 1 Jsq cm.

Subject Categories:

  • Lasers and Masers
  • Optical Countermeasures
  • Infrared Detection and Detectors

Distribution Statement:

APPROVED FOR PUBLIC RELEASE