Optics: measuring and testing – By light interference – For dimensional measurement
Reexamination Certificate
2007-10-23
2007-10-23
Lee, Hwa (Andrew) (Department: 2877)
Optics: measuring and testing
By light interference
For dimensional measurement
C356S432000
Reexamination Certificate
active
10152743
ABSTRACT:
A system and method for laser light amplification provides amplification of a laser light beam emitted from a laser light source as low-amplification seed laser light signal. The low-amplification seed laser light signal is transmitted to an amplification component. The amplification component amplifies the low-amplification seed laser light signal by stimulating emissions of the population inversion provided by a pumping diode to generate an amplified laser light signal. The system and method further directs the amplified laser light signal to an output destination. The destination may be an object undergoing laser ultrasound testing. The amplified laser light may reflect with a modulation characteristic of a sound energy wave about the object. The reflected laser light may be collected by an interferometer and used in the detection and characterization of the sound energy wave. The result of the present invention is a system and method of operation providing higher pulse rates, improved pointing stability, and optionally variable pulse rates for a variety of uses, including for non-destructive laser ultrasonic testing of materials.
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Garlick & Harrison & Markison
Lee Hwa (Andrew)
McLauchlan Robert
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