Share Email Print

Proceedings Paper

Recent advances in absolute distance measurements using femtosecond light pulses
Author(s): Seung-Woo Kim; Young-Jin Kim; Sangwon Hyun; Byung Jae Chun; Yoon-Soo Jang
Format Member Price Non-Member Price
PDF $14.40 $18.00
cover GOOD NEWS! Your organization subscribes to the SPIE Digital Library. You may be able to download this paper for free. Check Access

Paper Abstract

Absolute distance measurement (ADM) with high precision is required for various fields of precision engineering, which has long been implemented by means of time-of-flight measurement of a pulsed laser, intensity or frequency modulation of a continuous-wave laser, and cross-correlation of pseudo-random micro-wave signals. Recently, in response to increasing demands on the measurement precision and range beyond conventional limits, femtosecond pulse lasers began to draw attention as a new light source that permits realizing various advanced ADM principles such as synthetic radiofrequency wavelength generation, Fourier-transform-based dispersive analysis and multi-wavelength interferometry. In this talk, we present the state-of-the-art measurement principles and performance demonstrated by exploiting the unique temporal and spectral characteristics of femtosecond laser pulses for high-precision ADM applications.

Paper Details

Date Published: 6 March 2015
PDF: 9 pages
Proc. SPIE 9446, Ninth International Symposium on Precision Engineering Measurement and Instrumentation, 94464M (6 March 2015); doi: 10.1117/12.2182139
Show Author Affiliations
Seung-Woo Kim, KAIST (Korea, Republic of)
Young-Jin Kim, KAIST (Korea, Republic of)
Sangwon Hyun, KAIST (Korea, Republic of)
Byung Jae Chun, KAIST (Korea, Republic of)
Yoon-Soo Jang, KAIST (Korea, Republic of)

Published in SPIE Proceedings Vol. 9446:
Ninth International Symposium on Precision Engineering Measurement and Instrumentation
Junning Cui; Jiubin Tan; Xianfang Wen, Editor(s)

© SPIE. Terms of Use
Back to Top