검색
검색 팝업 닫기

Ex) Article Title, Author, Keywords

Article

Research Paper

Journal of the Optical Society of Korea 2012; 16(4): 396-400

Published online December 25, 2012 https://doi.org/10.3807/JOSK.2012.16.4.396

Copyright © Optical Society of Korea.

Theoretical Considerations on Combined Optical Distance Measurements Using a Femtosecond Pulse Laser

Ki-Nam Joo1 and Seung-Woo Kim2

1Department of Photonics Engineering, Chosun University; 2Department of Mechanical Engineering, Korea Advanced Institute of Science and Technology

Received: July 25, 2012; Revised: August 20, 2012; Accepted: September 26, 2012

Abstract

We introduce a combined technique and the mathematical description for distance measurements using a femtosecond pulse laser in a long range and a fine resolution. For distance measurements, the maximum measurable range can be extended by combining measurement results from several different methods while requiring relationships between the different measurement uncertainties and unambiguity ranges. This paper briefly explains why the uncertainty of a rough measurement technique (RMT) should be, at least, smaller than the half unambiguity range of a fine measurement technique (FMT) in order to combine a FMT with a RMT. Further discussions about the total measurement range, resolution, and uncertainty for various optical measurement techniques are also discussed.

Keywords: Combined optical interferometry, Distance measurements, Femtosecond pulse laser application,

OCIS codes: 120.3180; 120.0120; 140.7090

Optical Society of Korea

Current Optics
and Photonics


Wonshik Choi,
Editor-in-chief

Share this article on :

  • line