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Spectral domain optical coherence tomography imaging with an integrated optics spectrometer

机译:集成光学光谱仪的光谱域光学相干断层扫描成像

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摘要

We designed and fabricated an arrayed-waveguide grating (AWG) in silicon oxynitride as a spectrometer for spectral domain optical coherence tomography (SD-OCT). The AWG has a footprint of only 3.0cm X 2.5 cm, operates at a center wavelength of 1300 nm, and has 78 nm free spectral range. OCT measurements are performed that demonstrate imaging up to a maximum depth of 1 mm with an axial resolution of 19 (mu)m, both in agreement with the AWG design parameters. Using the AWG spectrometer combined with a fiber-based SD-OCT system, we demonstrate cross-sectional OCT imaging of a multilayered scattering phantom.
机译:我们设计和制造了氮氧化硅中的阵列波导光栅(AWG),作为用于光谱域光学相干断层扫描(SD-OCT)的光谱仪。 AWG的占地面积仅为3.0cm X 2.5 cm,在1300 nm的中心波长下工作,并具有78 nm的自由光谱范围。进行了OCT测量,以证明最大成像深度为1 mm,轴向分辨率为19μm,这都与AWG设计参数一致。使用AWG光谱仪结合基于光纤的SD-OCT系统,我们演示了多层散射体模的截面OCT成像。

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