Design, implementation, and characterization of spectrometer-based spectral domain optical coherence tomography

Kunakorn Palawong; Pornthep Pongchalee; Porntip Chuamchaitrakool; Sukanya Tachatraiphop; Joewono Widjaja; Panomsak Meemon

doi:10.1117/12.2054287

2 June 2014 Design, implementation, and characterization of spectrometer-based spectral domain optical coherence tomography

Kunakorn Palawong, Pornthep Pongchalee, Porntip Chuamchaitrakool, Sukanya Tachatraiphop, Joewono Widjaja, Panomsak Meemon

Author Affiliations +

Proceedings Volume 9234, International Conference on Experimental Mechanics 2013 and Twelfth Asian Conference on Experimental Mechanics; 923417 (2014) https://doi.org/10.1117/12.2054287
Event: International Conference on Experimental Mechanics 2013 and the Twelfth Asian Conference on Experimental Mechanics, 2013, Bangkok, Thailand

Abstract

We report the implementation of a high speed and high resolution spectrometer-based spectral domain optical coherence tomography (SD-OCT) system. A high speed near-infrared spectrometer was designed and built, utilizing a high speed line-array CMOS detector and all off-the-shelf optical components. The acquisition speed of more than 100,000 spectra per second was achieved, enabling a high speed 3D imaging of the implemented SD-OCT system. Here, we report the performance characterization, i.e. resolution, imaging depth, and sensitivity of the implemented system. The penetration depth and depth resolution of the system are currently 2 mm and 14.1 μm, respectively. The lateral resolution of the system was quantified by the Modulation transfer function (MTF) measurement to be about 15.5 μm. over the lateral field-of-view (x-y axes) of 30 mm × 30 mm. The acquisition speed of the system was 20 frames per second.

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Kunakorn Palawong, Pornthep Pongchalee, Porntip Chuamchaitrakool, Sukanya Tachatraiphop, Joewono Widjaja, and Panomsak Meemon "Design, implementation, and characterization of spectrometer-based spectral domain optical coherence tomography", Proc. SPIE 9234, International Conference on Experimental Mechanics 2013 and Twelfth Asian Conference on Experimental Mechanics, 923417 (2 June 2014); https://doi.org/10.1117/12.2054287

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