FEMTOSECOND LASER RANGE FINDER

FIELD: measurement technology. SUBSTANCE: femtosecond laser range finder incorporates laser radiator, receiving and transmitting optical channels, optical adjustable delay line with indicator of delay value, photodetector. Laser radiator comes in the form of source of isolated femtosecond pulses who...

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Bibliographic Details
Main Authors LESNYKH I.V, SEREDOVICH V.A, KOSHELEV A.V, SINJAKIN A.K, MIRONOV M.E
Format Patent
LanguageEnglish
Russian
Published 10.05.2004
Edition7
Subjects
GYROSCOPIC INSTRUMENTS
MEASURING
MEASURING DISTANCES, LEVELS OR BEARINGS
NAVIGATION
PHOTOGRAMMETRY OR VIDEOGRAMMETRY
PHYSICS
SURVEYING
TESTING
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Summary:FIELD: measurement technology. SUBSTANCE: femtosecond laser range finder incorporates laser radiator, receiving and transmitting optical channels, optical adjustable delay line with indicator of delay value, photodetector. Laser radiator comes in the form of source of isolated femtosecond pulses whose radiation goes to recirculator from which output major part of radiation is fed into transmitting channel and another part of it goes to optical adjustable delay line. Range finder is supplemented with ultra-high-speed switch to which input measurement pulses are fed from receiving optical channel and optical adjustable delay line, measurement pulses are fed from output of ultra-highspeed switch into photodetector which output is connected to unit controlling optical delay line. EFFECT: increased instrument accuracy of range measurement. 1 dwg
Bibliography:Application Number: RU20000100690