High-speed spectral-domain optical coherence tomography at 830nm wavelength

Kai Wang; Gang Huang; Zhihua Ding; Ling Wang

doi:10.1117/12.757208

8 January 2008 High-speed spectral-domain optical coherence tomography at 830nm wavelength

Kai Wang, Gang Huang, Zhihua Ding, Ling Wang

Proceedings Volume 6826, Optics in Health Care and Biomedical Optics III; 68260A (2008) https://doi.org/10.1117/12.757208
Event: Photonics Asia 2007, 2007, Beijing, China

Abstract

We present a high-speed spectral domain optical coherence tomography (SD-OCT) system at 830 nm wavelength which is consisted of a fiber based Michelson interferometer and a custom-built spectrometer. The designed resolution of the spectrometer is about 67.4pm which limits the maximum detection depth 2.56mm in air. And the 35us exposure time of the high speed line scan CCD makes real-time imaging possible. Furthermore, a novel method of spectrometer calibration is put forward. The method can remove the influence of dispersion mismatch, thus accurately determine the distribution of wavelength on the line scan CCD, which leads to a precise interpolation and a subsequent better contrast image.

Citation Download Citation

Kai Wang, Gang Huang, Zhihua Ding, and Ling Wang "High-speed spectral-domain optical coherence tomography at 830nm wavelength", Proc. SPIE 6826, Optics in Health Care and Biomedical Optics III, 68260A (8 January 2008); https://doi.org/10.1117/12.757208

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