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Compact all-fiber Bessel beam generator based on hollow optical fiber combined with a hybrid polymer fiber lens

: Kim, J.K.; Kim, J.; Jung, Y.; Ha, W.; Jeong, Y.-S.; Lee, S.; Tünnermann, A.; Oh, K.


Optics Letters 34 (2009), No.19, pp.2973-2975
ISSN: 0146-9592
Journal Article
Fraunhofer IOF ()

We report a compact all-fiber Bessel beam generator using hollow optical fiber (HOF) and coreless silica fiber based on a self-assembled polymer lens. A nearly diffraction-free Bessel beam pattern was observed with its focused beam diameter of 20 mu m maintained over a propagation distance of 550 mu m. The generated Bessel beams were experimentally tested under various structural parameters such as the diameters of the HOF and operating wavelengths. A beam propagation method was applied to simulate the proposed device, which shows good agreement with the experimental observations. (C) 2009 Optical Society of America