8 May 2014 Fiber optically integrated cost-effective spectrometer for optical coherence tomography
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Abstract
A tilted fiber Bragg grating (TFBG) was integrated as the dispersive element in a high performance biomedical imaging system. The spectrum emitted by the 23 mm long active region of the fiber is projected through custom designed optics consisting of a cylindrical lens for vertical beam collimation and successively by an achromatic doublet onto a linear detector array. High resolution tomograms of biomedical samples were successfully acquired by the frequency domain OCT-system. Tomograms of ophthalmic and dermal samples obtained by the frequency domain OCT-system were obtained achieving 2.84 μm axial and 10.2 μm lateral resolution. The miniaturization reduces costs and has the potential to further extend the field of application for OCT-systems in biology, medicine and technology.
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Stefan Remund, Stefan Remund, Anke Bossen, Anke Bossen, Xianfeng Chen, Xianfeng Chen, Ling Wang, Ling Wang, Lin Zhang, Lin Zhang, Boris Považay, Boris Považay, Christoph Meier, Christoph Meier, } "Fiber optically integrated cost-effective spectrometer for optical coherence tomography", Proc. SPIE 9129, Biophotonics: Photonic Solutions for Better Health Care IV, 91293G (8 May 2014); doi: 10.1117/12.2052595; https://doi.org/10.1117/12.2052595
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