Comparison of scanning stability analysis with the dual-axis MEMS scanner based on switchable driving mode in optical coherence tomography imaging technology
Journal
Proceedings of SPIE - The International Society for Optical Engineering
Journal Volume
12608
ISBN
9781510663435
Date Issued
2023-01-01
Author(s)
Abstract
Micro-electro-mechanical system (MEMS) scanner has the potential to be used in the optical coherence tomography (OCT) imaging system due to fabrication friendliness, and miniature architecture size. The function of feedback control circuits provides the output signal to be fed back to the scanner enabling correcting the drive waveform in real-time to conquer the limitation of scanning stability of the MEMS scanner. In this study, we have developed a swept-source optical coherence tomography (SS-OCT) system configuration of a dual-axis MEMS scanner, switchable operated between open-loop and closed-loop driving modes, to investigate the scanning stability of the MEMS scanner by analyzing the scanning trajectories detected by the position sensitive device (PSD) sensor at frame rates of 50 and 250 Hz. Preliminary results of the quantitative analysis are presented in this paper.
Subjects
comparison of image quality | feedback control | MEMS scanner | OCT | scanning stability
Type
conference paper