Electro-optic distance-measuring device

A distance measuring device comprises a light source (101) emitting light, and such an integrated electro-optic modulator (21, 22, 23) arranged such that the emitted light passes through an optical waveguide of the electro-optic modulator (21, 22, 23) in a first direction before being emitted from t...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	LUETHI THOMAS, BOECKEM BURKHARD
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	ANALOGOUS ARRANGEMENTS USING OTHER WAVES DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES 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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Beschreibung
Zusammenfassung:	A distance measuring device comprises a light source (101) emitting light, and such an integrated electro-optic modulator (21, 22, 23) arranged such that the emitted light passes through an optical waveguide of the electro-optic modulator (21, 22, 23) in a first direction before being emitted from the distance measuring device, and after being reflected from a target passes through the electro-optic modulator (21, 22, 23) in a second direction which is opposite to the first direction, The forward electro-optic response of a modulating region (17) of the electro-optic modulator (21, 22, 23) is the same as the backward electro-optic response, and a centre of gravity of the modulation is independent of modulation frequency.