Share Email Print
cover

Proceedings Paper • new

Dual-band wavelength-comb-swept laser to extend displacement measurement range
Author(s): Seongjin Bak; Gyeong Hun Kim; Chang-Seok Kim
Format Member Price Non-Member Price
PDF $17.00 $21.00

Paper Abstract

We demonstrate dual-band wavelength-comb-swept laser for solving the aliasing interferometer signal in displacement measurement. Wavelength-comb-swept laser with etalon filter has longer coherence length and narrower linewidth than conventional wavelength-swept laser. On the other hand, aliasing of interferometer signal in displacement measurement is induced because of discrete distribution of comb spectra in wavelength domain. By using the dual-band wavelength-comb-swept-laser which has two different free spectral range (FSR) comb in each band, aliasing interferometer signal can be solved.

Paper Details

Date Published: 19 July 2019
PDF: 3 pages
Proc. SPIE 11078, Optical Coherence Imaging Techniques and Imaging in Scattering Media III, 110781W (19 July 2019); doi: 10.1117/12.2526914
Show Author Affiliations
Seongjin Bak, Pusan National Univ. (Korea, Republic of)
Gyeong Hun Kim, Pusan National Univ. (Korea, Republic of)
Chang-Seok Kim, Pusan National Univ. (Korea, Republic of)


Published in SPIE Proceedings Vol. 11078:
Optical Coherence Imaging Techniques and Imaging in Scattering Media III
Maciej Wojtkowski; Stephen A. Boppart; Wang-Yuhl Oh, Editor(s)

© SPIE. Terms of Use
Back to Top