Frontiers of Optoelectronics, 2015, 8 (2): 163, 网络出版: 2016-01-07
Fourier domain optical coherence tomography with ultralong depth range
Fourier domain optical coherence tomography with ultralong depth range
optical coherence tomography (OCT) optical coherence tomography (OCT) virtually- imaged phased array (VIPA) virtually- imaged phased array (VIPA) orthogonal dispersion orthogonal dispersion swept source swept source light recirculation light recirculation parallel imaging parallel imaging dimensional metrology dimensional metrology
摘要
The depth ranges of typical implementations of Fourier domain optical coherence tomography (FDOCT), including spectral domain OCT (SDOCT) and swept source OCT (SSOCT), are limited to several millimeters. To extend the depth range of current OCT systems, two novel systems with ultralong depth range were developed in this study. One is the orthogonal dispersive SDOCT (OD-SDOCT), and the other is the recirculated swept source (R-SS) interferometer/OCT. No compromise between depth range and depth resolution is required in both systems. The developed OD-SDOCT system realized the longest depth range (over 100 mm) ever achieved by SDOCT, which is ready to be modified for depth-encoded parallel imaging on multiple sites. The developed R-SS interferometer achieved submicron precision within a depth range of 30 mm, holding potential in real-time contact-free on-axis metrology of complex optical systems.
Abstract
The depth ranges of typical implementations of Fourier domain optical coherence tomography (FDOCT), including spectral domain OCT (SDOCT) and swept source OCT (SSOCT), are limited to several millimeters. To extend the depth range of current OCT systems, two novel systems with ultralong depth range were developed in this study. One is the orthogonal dispersive SDOCT (OD-SDOCT), and the other is the recirculated swept source (R-SS) interferometer/OCT. No compromise between depth range and depth resolution is required in both systems. The developed OD-SDOCT system realized the longest depth range (over 100 mm) ever achieved by SDOCT, which is ready to be modified for depth-encoded parallel imaging on multiple sites. The developed R-SS interferometer achieved submicron precision within a depth range of 30 mm, holding potential in real-time contact-free on-axis metrology of complex optical systems.
Zhihua DING, Yi SHEN, Wen BAO, Peng LI. Fourier domain optical coherence tomography with ultralong depth range[J]. Frontiers of Optoelectronics, 2015, 8(2): 163. Zhihua DING, Yi SHEN, Wen BAO, Peng LI. Fourier domain optical coherence tomography with ultralong depth range[J]. Frontiers of Optoelectronics, 2015, 8(2): 163.