Frequency-Stabilized Transversely Excited Atmospheric (TEA) CO[sub]2[/sub] Lasers For Coherent Infrared Radar Systems

Paul Pace; James Cruickshank

doi:10.1117/12.932586

30 April 1982 Frequency-Stabilized Transversely Excited Atmospheric (TEA) CO₂ Lasers For Coherent Infrared Radar Systems

Paul Pace, James Cruickshank

Author Affiliations +

Proceedings Volume 0300, Physics and Technology of Coherent Infrared Radar I; (1982) https://doi.org/10.1117/12.932586
Event: 25th Annual Technical Symposium, 1981, San Diego, United States

Abstract

Several single mode TEA CO2 lasers have been constructed and evaluated with the aim of providing frequency stabilized sources for various coherent infrared radar systems. Methods including injection locking, intra-cavity selective amplification, unstable resonators, short cavities and pulse amplification have been combined with various stabilization techniques to produce frequency stabilized output pulse energies from millijoules to several joules with pulse lengths ranging from fifty nanoseconds to several microseconds. Pulse to pulse frequency instabilities of 50 kHz have been obtained over long time periods for a hybrid system and pulse repetition rates approaching 1000 per second are anticipated for the oscillator amplifier system. Intra pulse frequency characteristics have been measured (chirp) and a theoretical model has been developed to explain the observed behaviour.

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Paul Pace and James Cruickshank "Frequency-Stabilized Transversely Excited Atmospheric (TEA) CO₂ Lasers For Coherent Infrared Radar Systems", Proc. SPIE 0300, Physics and Technology of Coherent Infrared Radar I, (30 April 1982); https://doi.org/10.1117/12.932586

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