光学相干层析成像
光学
材料科学
光纤
干涉测量
纤维
连贯性(哲学赌博策略)
图像分辨率
断层摄影术
作者
Santosh Balakrishnan,Amy L. Oldenburg
出处
期刊:Applied Optics
[The Optical Society]
日期:2021-08-01
卷期号:60 (22): 6385-6392
摘要
Endoscopic optical coherence tomography of large airways poses unique challenges. A hybrid lens is described that consists of a section of coreless fiber and graded index fiber (GIF), followed by a ball lens section. This design produces low numerical aperture beams better suited for large airway imaging. The performance of this lens is compared against conventional GIF and ball lens designs. Forward- and side-viewing probes were modeled, fabricated, and tested. The impact of a sheath on the beam profile was also investigated. Probes with working distances larger than 10 mm and depth-of-focus exceeding 12 mm are demonstrated with the proposed design.
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