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Balanced detection spectral domain optical coherence tomography with a multiline single camera for signal-to-noise ratio enhancement |
Applied Optics, Vol. 51, Issue 24, pp. 5936-5940 (2012)
http://dx.doi.org/10.1364/AO.51.005936
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Abstract
In this study, the use and advantages of balanced detection (BD) in spectral domain optical coherence tomography (SD-OCT) are demonstrated. A-scans are calculated as a combination of two phase-opposed interferometric spectra acquired simultaneously by using a multiline single camera spectrometer. Not only does this system suppress artifacts due to autocorrelation, but also the signal of interest is increased by a factor of 2 as experimentally verified. Our BD-based SD-OCT gives a signal-to-noise ratio improvement of 8–14 dB for the peak within 1 mm compared to standard SD-OCT using a single detection scheme. This method is validated by experimental measurement of a glass plate.
© 2012 Optical Society of America
OCIS Codes
(110.4500) Imaging systems : Optical coherence tomography
(120.3890) Instrumentation, measurement, and metrology : Medical optics instrumentation
ToC Category:
Imaging Systems
History
Original Manuscript: February 17, 2012
Revised Manuscript: May 5, 2012
Manuscript Accepted: July 17, 2012
Published: August 20, 2012
Virtual Issues
Vol. 7, Iss. 10 Virtual Journal for Biomedical Optics
Citation
Wen-Chuan Kuo, Yune-Shee Lai, Chih-Ming Lai, and Yi-Shiang Huang, "Balanced detection spectral domain optical coherence tomography with a multiline single camera for signal-to-noise ratio enhancement," Appl. Opt. 51, 5936-5940 (2012)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-51-24-5936
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