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http://dx.doi.org/10.3807/HKH.2007.18.5.309

Implementation of the Wavelength-Swept-Source and Signal Processing for the Frequency Domain Optical Coherence Tomography  

Lee, Eung-Je (College of Electronics and Information / Institute for Laser Engineering, Kyunghee University)
Kim, Yong-Pyung (College of Electronics and Information / Institute for Laser Engineering, Kyunghee University)
Publication Information
Korean Journal of Optics and Photonics / v.18, no.5, 2007 , pp. 309-316 More about this Journal
Abstract
We demonstrate the wavelength swept source and signal processing for the frequency domain optical coherence tomography. The laser output performance is improved by using a semiconductor optical amplifier with a booster amplifier. The laser generates 14 mW of average power of which wavelength shift in the lasing spectral shape is compensated. Adopting a Fabry-Perot etalon and digital signal processing, the broadening of the beat frequency due to the variance of wavelength-sweep-velocity is calibrated. The optical coherence tomography system shows 154.4 kHz of axial scanning speed, 0.95mm of depth range, and $12{\pm}0.37{\mu}m$ of axial resolution.
Keywords
Frequency domain optical coherence tomography; Wavelength swept laser; Beat frequency calibration;
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Times Cited By KSCI : 1  (Citation Analysis)
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