Development of a mid-infrared laser for study of infrared countermeasures techniques

H. H. P. Th. Bekman; J. C. van den Heuvel; F. J. M. van Putten; Ric Schleijpen

doi:10.1117/12.578214

29 December 2004 Development of a mid-infrared laser for study of infrared countermeasures techniques

H. H. P. Th. Bekman, J. C. van den Heuvel, F. J. M. van Putten, Ric Schleijpen

Proceedings Volume 5615, Technologies for Optical Countermeasures; (2004) https://doi.org/10.1117/12.578214
Event: European Symposium on Optics and Photonics for Defence and Security, 2004, London, United Kingdom

Abstract

Countermeasures against heat seeking missiles require access to efficient laser sources, which should emit wavelengths at band I, II and IV. Efficient diode pumped solid-state lasers, combined with efficient non-linear wavelength shifters, allow the development of practical tuneable mid-IR countermeasure sources. The paper describes the requirements and the development of a tabletop laser source for study of DIRCM techniques. Jamming laser systems must be able of creating pulse sequences in the frequency range between 100 Hz and 10,000 Hz, including the capability to mix and sweep the jam frequency. A Nd:YVO₄ pump laser with maximum pump power of 3 Watt and pulse length of 10 ns, and a maximum modulation frequency of 100 kHz was selected. A linear single resonant OPO cavity with 30 mm long, 1mm thick PPLN crystals was build. With the tabletop laser system we were able to generate wavelengths from 1.5 to 4 micron. In band I, at 2 micron we can generate between 400-550 mW, and in band II, from 3-4 micron we can generate 130-160 mW laser jam power. The beam quality (M²) is approximately 2.5. The power efficiency for the idler was 8.8%, while the slope power efficiency was 15%. Jam patterns are generated by use of an acousto-optic modulator.

Citation Download Citation

H. H. P. Th. Bekman, J. C. van den Heuvel, F. J. M. van Putten, and Ric Schleijpen "Development of a mid-infrared laser for study of infrared countermeasures techniques", Proc. SPIE 5615, Technologies for Optical Countermeasures, (29 December 2004); https://doi.org/10.1117/12.578214

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available