Share Email Print
cover

Proceedings Paper

Laser ranging based on secondary modulated beam
Author(s): Dong Zhao; Yang Feng; Huang Tang
Format Member Price Non-Member Price
PDF $14.40 $18.00

Paper Abstract

A novel CW-laser ranging method is proposed in this paper. This method gets the required range information not by measuring the phase difference of the modulated CW-laser as in the traditional phase-shift laser ranging method, but by comparing the mean light intensity of two linearly polarized components of the returned secondary modulation light. And based on double refraction and total internal double reflection effect in crystal, a single block LiNbO3 crystal with special shape is designed as the main device in this laser ranging method. Because of replacing the complex electric devices by simply optic devices, this method not only simplifies the structure of devices, but also has a high precision. The feasibility of the new idea is proved by a primary experiment, and a brand-new way for the laser ranging is provided.

Paper Details

Date Published: 12 October 2010
PDF: 9 pages
Proc. SPIE 7656, 5th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Optical Test and Measurement Technology and Equipment, 76567C (12 October 2010); doi: 10.1117/12.865983
Show Author Affiliations
Dong Zhao, Fudan Univ. (China)
Yang Feng, Fudan Univ. (China)
Huang Tang, Fudan Univ. (China)


Published in SPIE Proceedings Vol. 7656:
5th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Optical Test and Measurement Technology and Equipment
Yudong Zhang; Jose M. Sasian; Libin Xiang; Sandy To, Editor(s)

© SPIE. Terms of Use
Back to Top