期刊
IEEE PHOTONICS TECHNOLOGY LETTERS
卷 34, 期 23, 页码 1277-1280出版社
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/LPT.2022.3212015
关键词
Optical interferometry; Crystals; Dispersion; Optical pulses; Ultrafast optics; Optical fiber polarization; Optical fiber dispersion; OCT; electro-optic modulator; fast imaging; swept source
资金
- Marie Curie Training International Training Network (ITN) through the European Commission (EC) [NETLAS-860807]
- University College of London (UCL) Institute of Ophtalmology-Moorfields Eye Hospital London [BRC003]
This Letter demonstrates a swept-source optical coherence tomography (SS-OCT) instrument that utilizes an innovative scanning protocol to achieve high-speed volumetric rate imaging. By combining an ultra-fast lateral scanner and a swept laser, the instrument is able to provide A-scans at a repetition rate of 40 MHz and an unprecedented 3D-OCT volume acquisition rate of 400 Hz.
In this Letter, a swept-source optical coherence tomography (SS-OCT) instrument employing an innovative scanning protocol for high-speed volumetric rate imaging is demonstrated. The optical source is a tunable laser based on a supercontinuum source pumped with femtosecond pulses, followed by a time-stretched delay fiber. The instrument is equipped with an ultra-fast lateral scanner, based on a KTN crystal, driven at 100 kHz. The letter proves the utility of combining an ultra-fast lateral scanner with an ultra-fast swept laser to provide A-scans at a repetition rate of 40 MHz and an unprecedented 3D-OCT volume acquisition rate of 400 Hz.
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