EP 0886788 A1 19981230 - LASER VELOCIMETER AND RANGE FINDER USING COHERENT DETECTION
Title (en)
LASER VELOCIMETER AND RANGE FINDER USING COHERENT DETECTION
Title (de)
KOHÄRENTE DETEKTION GEBRAUCHENDER LASERGESCHWINDIGKEITS- UND -ENTFERNUNGSMESSER
Title (fr)
VELOCIMETRE ET TELEMETRE LASER UTILISANT UNE DETECTION COHERENTE
Publication
Application
Priority
- FR 9701822 W 19971013
- FR 9612493 A 19961014
Abstract (en)
[origin: FR2754605A1] The invention concerns a device for measuring velocity using coherent detection 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 for transmitting 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), for amplifying a measurement signal coming from a target having intercepted the transmitted laser beam (4) by means of the first resonant cavity.
IPC 1-7
IPC 8 full level
G01S 7/481 (2006.01); G01S 17/58 (2006.01); G01S 17/34 (2020.01); H01S 3/00 (2006.01)
CPC (source: EP US)
G01S 7/4812 (2013.01 - EP US); G01S 17/58 (2013.01 - EP US); G01S 17/34 (2020.01 - EP US); H01S 3/00 (2013.01 - EP US)
Citation (search report)
See references of WO 9816844A1
Designated contracting state (EPC)
AT BE DE ES GB IT LU
DOCDB simple family (publication)
FR 2754605 A1 19980417; FR 2754605 B1 19981030; EP 0886788 A1 19981230; US 6100516 A 20000808; WO 9816844 A1 19980423
DOCDB simple family (application)
FR 9612493 A 19961014; EP 97909395 A 19971013; FR 9701822 W 19971013; US 7720199 A 19990715