Chinese Optics Letters, 2011, 9 (9): 090608, Published Online: Jul. 13, 2011
Microball lens integrated fiber probe for optical frequency domain imaging
光纤成像 OCT 集成光学器件 060.2350 Fiber optics imaging 110.4500 Optical coherence tomography 130.3120 Integrated optics devices
Abstract
An integrated microball lens fiber catheter probe is demonstrated, which has better lateral resolution and longer working distance than a corresponding bare fiber probe with diverging beam for Fourier domain optical coherence tomography (FDOCT). Simulation results are shown to gain the effect of the distance between the microball lens and the bare fiber to the focusing plane and beam width. The freedom of modifying the working distance and lateral resolution is shown. This is achieved by changing the gap distance between the single-mode fiber and the microball lens within the packaged surgical needle catheter without using an additional beam expander having a fixed length. The probe successfully acquired cross-sectional images of ocular tissues from an animal sample with the proposed miniaturized imaging probe.
Jae-Ho Han, J. U. Kang. Microball lens integrated fiber probe for optical frequency domain imaging[J]. Chinese Optics Letters, 2011, 9(9): 090608.