Velocity measurement device and laser range finder using a coherent detection

PCT No. PCT/FR97/01822 Sec. 371 Date Jul. 15, 1999 Sec. 102(e) Date Jul. 15, 1999 PCT Filed Oct. 13, 1997 PCT Pub. No. WO98/16844 PCT Pub. Date Apr. 23, 1998The invention relates to a velocity measurement device of the coherent detection type comprising: an active laser medium (10), an input mirror...

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Bibliographic Details
Main Authors NERIN; PHILIPPE, BESESTY; PASCAL, MOLVA; ENGIN, CHARTIER; GERMAIN
Format Patent
LanguageEnglish
Published 08.08.2000
Edition7
Subjects
ANALOGOUS ARRANGEMENTS USING OTHER WAVES
BASIC ELECTRIC ELEMENTS
DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES
DEVICES USING STIMULATED EMISSION
ELECTRICITY
LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION ORRERADIATION OF RADIO WAVES
MEASURING
PHYSICS
RADIO DIRECTION-FINDING
RADIO NAVIGATION
TESTING
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Summary:PCT No. PCT/FR97/01822 Sec. 371 Date Jul. 15, 1999 Sec. 102(e) Date Jul. 15, 1999 PCT Filed Oct. 13, 1997 PCT Pub. No. WO98/16844 PCT Pub. Date Apr. 23, 1998The invention relates to a velocity measurement device of the coherent detection type comprising: an active laser medium (10), an input mirror (M1) and a first output mirror (M3) defining, with the laser medium, a first resonant cavity of quality factor Qmax making it possible to emit a laser beam (4), a second output mirror (M2) defining, with the active laser medium (10) and the input mirror (M1), a second resonant cavity of quality factor Qmin (<Qmax), making it possible to amplify a measuring signal from a target which has intercepted the laser beam (4) emitted with the aid of the first resonant cavity.
Bibliography:Application Number: US19990077201