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Proceedings Paper

Multi-frequency sweeping interferometry using spatial optical frequency modulation
Author(s): Samuel Choi; Heiichi Kato; Osami Sasaki; Takamasa Suzuki
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Paper Abstract

We investigated the interference amplitude and phase characteristics of a multi-frequency sweeping interferometer with sinusoidal phase modulating technique. A novel multi frequency sweeping light source that generated an interval and center frequency variable frequency comb with a bandwidth of 14 nm was demonstrated. The interference phase and amplitude distributions were investigated by observing the zeroth and first order interference signals. In addition, the zeroth and first order interference phase variations caused by center frequency sweeping were measured.

Paper Details

Date Published: 20 November 2012
PDF: 7 pages
Proc. SPIE 8563, Optical Metrology and Inspection for Industrial Applications II, 856302 (20 November 2012); doi: 10.1117/12.999555
Show Author Affiliations
Samuel Choi, Niigata Univ. (Japan)
Heiichi Kato, Niigata Univ. (Japan)
Osami Sasaki, Niigata Univ. (Japan)
Takamasa Suzuki, Niigata Univ. (Japan)

Published in SPIE Proceedings Vol. 8563:
Optical Metrology and Inspection for Industrial Applications II
Kevin G. Harding; Peisen S. Huang; Toru Yoshizawa, Editor(s)

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