Abstract
We report a photonic crystal fiber (PCF)-based optical coherence tomography (OCT) system, in which conventional single-mode fiber for the transmission line and the fiber coupler for the beam splitter/combiner are replaced with PCF and PCF coupler. The PCF coupler fabricated using the fused biconical tapered (FBT) method showed a nearly flat coupling ratio over a broad spectral bandwidth of 400 nm, which provided an axial resolution of 3-μm for OCT imaging. With a white-light source, the 8-μm thick air gap between two stacked cover glasses was measured, and with a conventional superluminecent diode (SLD) source, the in vitro images of rat eye and Misgurnus mizolepis skin were successfully obtained. The PCF and PCF coupler might enable a white-light as the source for the cost effective and high-resolution OCT system.
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Ryu, S.Y., Choi, H.Y., Na, J. et al. Optical Coherence Tomography Implemented by Photonic Crystal Fiber. Opt Quant Electron 37, 1191–1198 (2005). https://doi.org/10.1007/s11082-005-4191-8
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DOI: https://doi.org/10.1007/s11082-005-4191-8