Laser ranging based on secondary modulated beam

Dong Zhao; Yang Feng; Huang Tang

doi:10.1117/12.865983

11 October 2010 Laser ranging based on secondary modulated beam

Dong Zhao, Yang Feng, Huang Tang

Proceedings Volume 7656, 5th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Optical Test and Measurement Technology and Equipment; 76567C (2010) https://doi.org/10.1117/12.865983
Event: 5th International Symposium on Advanced Optical Manufacturing and Testing Technologies, 2010, Dalian, China

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.

Citation Download Citation

Dong Zhao, Yang Feng, and Huang Tang "Laser ranging based on secondary modulated beam", Proc. SPIE 7656, 5th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Optical Test and Measurement Technology and Equipment, 76567C (11 October 2010); https://doi.org/10.1117/12.865983

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available