In:
Optical Review, Springer Science and Business Media LLC, Vol. 27, No. 2 ( 2020-04), p. 246-251
Abstract:
We developed a low-coherence interference measurement system using the time-stretch dispersive Fourier transformation technique and demonstrated 10 MHz measurements of the interference signal. We estimated the path length distribution by performing Fourier transformation of the interference signal. The estimated path length difference agreed with the set value. However, as the path length increased, the peak value and width of the path length distribution decreased and broadened, respectively. This behavior was due to the nonlinearity of the chirp rate. We proposed a simple method for calibrating and compensating for the nonlinearity of the chirp rate by analyzing the phase of interferograms for multiple path length. The decrease in peak value and widening of the path length distribution were improved by the proposed compensation method.
Type of Medium:
Online Resource
ISSN:
1340-6000
,
1349-9432
DOI:
10.1007/s10043-020-00585-w
Language:
English
Publisher:
Springer Science and Business Media LLC
Publication Date:
2020
detail.hit.zdb_id:
2010420-0
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