Optical low-coherence reflectometry with resolution beyond the Fourier transform limit

Chih Wei Lu; Meng Tsan Tsai; Yih Ming Wang; Su Feng Chen; Yean Woei Kiang; C. C. Yang

doi:10.1016/j.optcom.2005.08.058

Optical low-coherence reflectometry with resolution beyond the Fourier transform limit

Chih Wei Lu
, Meng Tsan Tsai
, Yih Ming Wang
, Su Feng Chen
, Yean Woei Kiang
, C. C. Yang^*

^*Corresponding author for this work

National Taiwan University

Research output: Contribution to journal › Journal Article › peer-review

1 Scopus citations

Abstract

We demonstrate experimentally and theoretically a method for enhancing the axial resolution of optical low-coherence reflectometry (OLCR) beyond the Fourier transform limit of light source spectrum. The resolution enhancement originates from the superposition of multiple OLCR scans with different offsets of the center-wavelength light-ray with respect to the rotation axis of the mirror mounted on the galvanometer optical scanner in the used optical phase delay line. After certain software process of the multiple scan fringe patterns of different offsets, the superposition leads to an OLCR axial resolution beyond the transform limit. Experimentally, by using four different offsets for superposition, about 1.5 times enhancement of the transform-limit resolution is obtained.

Original language	English
Pages (from-to)	281-285
Number of pages	5
Journal	Optics Communications
Volume	259
Issue number	1
DOIs	https://doi.org/10.1016/j.optcom.2005.08.058
State	Published - 01 03 2006
Externally published	Yes

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title = "Optical low-coherence reflectometry with resolution beyond the Fourier transform limit",

abstract = "We demonstrate experimentally and theoretically a method for enhancing the axial resolution of optical low-coherence reflectometry (OLCR) beyond the Fourier transform limit of light source spectrum. The resolution enhancement originates from the superposition of multiple OLCR scans with different offsets of the center-wavelength light-ray with respect to the rotation axis of the mirror mounted on the galvanometer optical scanner in the used optical phase delay line. After certain software process of the multiple scan fringe patterns of different offsets, the superposition leads to an OLCR axial resolution beyond the transform limit. Experimentally, by using four different offsets for superposition, about 1.5 times enhancement of the transform-limit resolution is obtained.",

author = "Lu, \{Chih Wei\} and Tsai, \{Meng Tsan\} and Wang, \{Yih Ming\} and Chen, \{Su Feng\} and Kiang, \{Yean Woei\} and Yang, \{C. C.\}",

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doi = "10.1016/j.optcom.2005.08.058",

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T1 - Optical low-coherence reflectometry with resolution beyond the Fourier transform limit

AU - Lu, Chih Wei

AU - Tsai, Meng Tsan

AU - Wang, Yih Ming

AU - Chen, Su Feng

AU - Kiang, Yean Woei

AU - Yang, C. C.

PY - 2006/3/1

Y1 - 2006/3/1

N2 - We demonstrate experimentally and theoretically a method for enhancing the axial resolution of optical low-coherence reflectometry (OLCR) beyond the Fourier transform limit of light source spectrum. The resolution enhancement originates from the superposition of multiple OLCR scans with different offsets of the center-wavelength light-ray with respect to the rotation axis of the mirror mounted on the galvanometer optical scanner in the used optical phase delay line. After certain software process of the multiple scan fringe patterns of different offsets, the superposition leads to an OLCR axial resolution beyond the transform limit. Experimentally, by using four different offsets for superposition, about 1.5 times enhancement of the transform-limit resolution is obtained.

AB - We demonstrate experimentally and theoretically a method for enhancing the axial resolution of optical low-coherence reflectometry (OLCR) beyond the Fourier transform limit of light source spectrum. The resolution enhancement originates from the superposition of multiple OLCR scans with different offsets of the center-wavelength light-ray with respect to the rotation axis of the mirror mounted on the galvanometer optical scanner in the used optical phase delay line. After certain software process of the multiple scan fringe patterns of different offsets, the superposition leads to an OLCR axial resolution beyond the transform limit. Experimentally, by using four different offsets for superposition, about 1.5 times enhancement of the transform-limit resolution is obtained.

UR - https://www.scopus.com/pages/publications/30744458864

U2 - 10.1016/j.optcom.2005.08.058

DO - 10.1016/j.optcom.2005.08.058

M3 - 文章

AN - SCOPUS:30744458864

SN - 0030-4018

VL - 259

SP - 281

EP - 285

JO - Optics Communications

JF - Optics Communications

IS - 1

ER -

Optical low-coherence reflectometry with resolution beyond the Fourier transform limit

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