search for




 

https://doi.org/10.3938/NPSM.68.570
Optical Design Method of a Spectrometer for Spectral Domain Optical Coherence Tomography
New Phys.: Sae Mulli 2018; 68: 570~577
Published online May 31, 2018;  https://doi.org/10.3938/NPSM.68.570
© 2018 New Physics: Sae Mulli.

Seung Seok LEE1, Da Wum KWON1, Eun Seo CHOI*1, Woosub SONG2

1 Department of Physics, College of Natural Science, Chosun University, Gwangju 61452, Korea
2 Bio-Health Research Center, Korea Photonics Technology Institute (KOPTI), Gwangju 61007, Korea
Correspondence to: cesman@chosun.ac.kr
Received March 30, 2018; Revised April 16, 2018; Accepted April 25, 2018.
cc This is an open-access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/3.0/) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.
Abstract
SD-OCT (spectral domain optical coherence tomography) can acquire non-invasively a tomographic image of a sample with a broadband light source and a spectrometer, but without moving the reference mirror. Unlike the conventional spectrometer, the spectrometer used in the SD-OCT measures the interference signal included in the spectrum; therefore, a differentiated optical design is required. However, not many references for the optical design of these spectrometers exist, and a long time is required to solve the problems in the development process. In order to solve these problems and to minimize the resources required for the development of the spectrometer, we propose the process for the optical design of the spectrometer and considerations for the selecting optical elements for each process. We proved the usefulness of the proposed optical design method by measuring the characteristics of the developed spectrometer and comparing the results with the theoretical values.
PACS numbers: 07.57.Ty, 07.60.Ly, 42.15.Eq
Keywords: Spectrometer, Optical coherence tomography, Optical system design


May 2020, 70 (5)
  • Scopus
  • CrossMark