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Enhancement of Optical Coherence Tomography Axial Resolution by spectral Shaping 总被引:2,自引:0,他引:2
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We propose a new method of changing the spectrum shape to improve the axial resolution of optical coherence tomography(OCT).Theoretical analysis shows that certain spectral shaping can shorten the coherence length.Comparisons of the simulation and experimental measurements of spectral shape shape and axial resolution of OCT are given,shwing that the axial resolution of OCT is enhanced by a factor of 1.4, 相似文献
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A small spatial optical filter is put into the rapid-scanning optical delay line (RSOD) to shape the spectrum of the reference beam in optical coherence tomography (OCT). The experimental results show that the longitudinal resolution can be improved by a factor of 81% with this method, while at the same time, the signal-to-noise ratio of the OCT system is not much affected. This method can be used in OCT systems that use RSOD as the reference arm with a light source of superluminescent diodes, femtosecond lasers and crystal fibre as well. 相似文献
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