Design and optimization of a spectrometer for high-resolution SD-OCT
Abstract
We report the design of a high-efficiency spectrometer for high-resolution spectral-domain optical coherence tomography (SD-OCT). The advantages of the proposed spectrometer are two-fold: first, we use a concave mirror instead of a camera lens (as typically used) as the focusing optics to both improve the transmission efficiency and eliminate chromatic aberrations; second, the efficiency of the proposed spectrometer is approximately 1.23 times that of a refractive optics-based spectrometer for an SD-OCT system, with comparable ranging depth and axial resolution. Both theoretical analyses and imaging experiments were conducted to characterize and validate the performance of the proposed spectrometer.
- Publication:
-
Laser Physics Letters
- Pub Date:
- April 2019
- DOI:
- 10.1088/1612-202X/ab0a5d
- Bibcode:
- 2019LaPhL..16d5603W
- Keywords:
-
- optical coherence tomography;
- imaging systems;
- medical and biological imaging;
- medical optics instrumentation