Abstract
Dispersive samples introduce a wavelength dependent phase distortion to the probe beam. This leads to a noticeable loss of depth resolution in high resolution OCT using broadband light sources. The standard technique to avoid this consequence is to balance the dispersion of the sample by arranging a dispersive material in the reference arm. However, the impact of dispersion is depth dependent. A corresponding depth dependent dispersion balancing technique is diffcult to implement. Here we present a numerical dispersion compensation technique for Partial Coherence Interferometry (PCI) and Optical Coherence Tomography (OCT) based on numerical correlation of the depth scan signal with a depth variant kernel. It can be used a posteriori and provides depth dependent dispersion compensation. Examples of dispersion compensated depth scan signals obtained from microscope cover glasses are presented.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 610-615 |
| Number of pages | 6 |
| Journal | Optics Express |
| Volume | 9 |
| Issue number | 12 |
| DOIs | |
| State | Published - Jan 1 2001 |
| Externally published | Yes |
Fingerprint
ASJC Scopus subject areas
- Atomic and Molecular Physics, and Optics
Cite this
Numerical dispersion compensation for partial coherence interferometry and optical coherence tomography. / Fercher, A. F.; Hitzenberger, C. K.; Sticker, M.; Zawadzki, Robert; Karamata, B.; Lasser, T.
In: Optics Express, Vol. 9, No. 12, 01.01.2001, p. 610-615.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Numerical dispersion compensation for partial coherence interferometry and optical coherence tomography
AU - Fercher, A. F.
AU - Hitzenberger, C. K.
AU - Sticker, M.
AU - Zawadzki, Robert
AU - Karamata, B.
AU - Lasser, T.
PY - 2001/1/1
Y1 - 2001/1/1
N2 - Dispersive samples introduce a wavelength dependent phase distortion to the probe beam. This leads to a noticeable loss of depth resolution in high resolution OCT using broadband light sources. The standard technique to avoid this consequence is to balance the dispersion of the sample by arranging a dispersive material in the reference arm. However, the impact of dispersion is depth dependent. A corresponding depth dependent dispersion balancing technique is diffcult to implement. Here we present a numerical dispersion compensation technique for Partial Coherence Interferometry (PCI) and Optical Coherence Tomography (OCT) based on numerical correlation of the depth scan signal with a depth variant kernel. It can be used a posteriori and provides depth dependent dispersion compensation. Examples of dispersion compensated depth scan signals obtained from microscope cover glasses are presented.
AB - Dispersive samples introduce a wavelength dependent phase distortion to the probe beam. This leads to a noticeable loss of depth resolution in high resolution OCT using broadband light sources. The standard technique to avoid this consequence is to balance the dispersion of the sample by arranging a dispersive material in the reference arm. However, the impact of dispersion is depth dependent. A corresponding depth dependent dispersion balancing technique is diffcult to implement. Here we present a numerical dispersion compensation technique for Partial Coherence Interferometry (PCI) and Optical Coherence Tomography (OCT) based on numerical correlation of the depth scan signal with a depth variant kernel. It can be used a posteriori and provides depth dependent dispersion compensation. Examples of dispersion compensated depth scan signals obtained from microscope cover glasses are presented.
UR - http://www.scopus.com/inward/record.url?scp=0000840366&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=0000840366&partnerID=8YFLogxK
U2 - 10.1364/OE.9.000610
DO - 10.1364/OE.9.000610
M3 - Article
VL - 9
SP - 610
EP - 615
JO - Optics Express
JF - Optics Express
SN - 1094-4087
IS - 12
ER -