Sapphire ball lensed fiber probe for common-path optical coherence tomography in ocular imaging and sensing.

摘要: We describe a novel common-path optical coherence tomography (CP-OCT) fiber probe design using sapphire ball lens for cross-sectional imaging and sensing in retina vitrectomy surgery. Single mode Gaussian beam (TEM 00 ) simulation was used to optimize lateral resolution working distance (WD) of the probe. A theoretical sensitivity model CP-OCT prosed assess its optimal performance based an unbalanced photodetector configuration. Two designs with distances 415μm 1221μm 11μm 18μm, respectively were implemented up 88dB. The are also fully compatible conventional Michelson interferometer OCT configurations. reference plane probe, located at distal exit interface single (SMF), encased within 25-gauge hypodermic needle by ball lens facilitates applications bloody harsh environments. performances 19μm axial demonstrated cow cornea vitro 1310nm swept source system. This attached piezoelectric motor active compensation physiological tremor handheld retinal surgical tools.