论文标题
使用FDML激光器的零滚动视网膜MHz-OCT
Zero roll-off retinal MHz-OCT using an FDML-Laser
论文作者
论文摘要
对于各种诊断目的，诸如Ultra Place场和全眼成像之类的光学相干断层扫描（OCT）应用非常感兴趣。在扫描源中，这些技术需要一个扫描的光源，这在整个成像深度上是连贯的。我们为视网膜OCT成像以1.7 MHz A-Scan速率和首先使用它的长距离成像产生了视网膜OCT成像的零滚动1060 nm傅立叶域模式锁定激光器（FDML-LASER）。进行了多个步骤，例如改善的分散补偿和频率调节，并将讨论。除了在4.6 mm的最大深度范围内几乎没有损失，并且观察到非常好的动态范围。滚动测量值没有显示点传播函数（PSF）的降低，同时保持高动态范围。
Optical coherence tomography (OCT) applications like ultra-widefield and full eye-length imaging are of high interest for various diagnostic purposes. In swept-source OCT these techniques require a swept light source, which is coherent over the whole imaging depth. We present a zero roll-off 1060 nm Fourier Domain Mode Locked-Laser (FDML-Laser) for retinal OCT imaging at 1.7 MHz A-scan rate and first long-range imaging results with it. Several steps such as improved dispersion compensation and frequency regulation were performed and will be discussed. Besides virtually no loss in OCT signal over the maximum depth range of 4.6 mm and very good dynamic range was observed. Roll-off measurements show no decrease of the point-spread function (PSF), while maintaining a high dynamic range.
