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Proceedings Paper

Transverse Doppler measurement by VCSEL-based optical translation measurement (OTM) sensor
Author(s): Opher Kinrot; Uri Kinrot
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Paper Abstract

Optical Translation Measurement (OTM), developed by GOU Lite Ltd, is a novel Doppler based motion measurement method. An OTM sensor includes a laser diode, detectors and optics integrated into a small transistor-style package. The sensor measures the relative motion of surfaces placed adjacent (up to a few millimeters) to its aperture. The OTM sensor is thus a compact 3D Doppler motion sensor, measuring two transverse (perpendicular to illumination beam) and one longitudinal directions of motion. Integration of low power (less than 1 mW) VCSELs enables low cost, low power consumption sensors. OTM is characterized by high SNR, high accuracy, resolution of a few wavelengths, and independence of the measurement from the distance to and the type of the surface. OTM is an 'enabling technology,' with potential wide-spread use both in traditional encoding tasks and in new applications.

Paper Details

Date Published: 1 May 2000
PDF: 4 pages
Proc. SPIE 3946, Vertical-Cavity Surface-Emitting Lasers IV, (1 May 2000); doi: 10.1117/12.384380
Show Author Affiliations
Opher Kinrot, GOU Lite, Ltd. (Israel)
Uri Kinrot, GOU Lite, Ltd. (Israel)

Published in SPIE Proceedings Vol. 3946:
Vertical-Cavity Surface-Emitting Lasers IV
Kent D. Choquette; Chun Lei, Editor(s)

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