Q-switched oscillator seed-source for MOPA laser illuminator method and apparatus

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 8934509
APP PUB NO 20110122895A1
SERIAL NO

12952190

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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An apparatus, method and system that uses a Q-switched laser or a Q-seed source for a seed pulse signal having a controlled high-dynamic-range amplitude that avoids and/or compensates for pulse steepening in high-gain optical-fiber and/or optical-rod amplification of optical pulses. Optionally, the optical output is used for LIDAR or illumination purposes (e.g., for image acquisition). In some embodiments, well-controlled pulse shapes are obtained having a wide dynamic range, long duration, and not-too-narrow linewidth. In some embodiments, upon the opening of a Q-switch in an optical cavity having a gain medium, the amplification builds relatively slowly, wherein each round trip through the gain medium increases the amplitude of the optical pulse. Other embodiments use quasi-Q-switch devices or a plurality of amplitude modulators to obtain Q-seed pulses. These configurations provide optical pulses having wide dynamic ranges that ameliorate problems of pulse steepening, non-linear spectral broadening and the like in very-high-power MOPA devices.

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Patent Owner(s)

Patent OwnerAddressTotal Patents
LOCKHEED MARTIN CORPORATIONBETHESDA, MD3612

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Dilley, Christian E Everett, US 4 64
Lemaire, Charles A Apple Valley, US 112 3123
Savage-Leuchs, Matthias P Woodinville, US 27 324

Cited Art Landscape

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Patent Citation Ranking

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