23 May 2007 Single-mode photonic crystal fiber for the middle infrared
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Photonic crystal optical fiber from silver halide crystals is described. Both experimental and theoretical evidences are presented to establish that the fiber is effectively singlemode at wavelength 10.6 &mgr;m with numerical aperture NA = 0.16 and optical losses of 2 dB/m . Crystalline microstructured optical fibers offer key advantages over step-index optical fibers from silver halide crystals. The wide transmission range of wavelengths 2-20 &mgr;m provides great potential for applications in spectroscopy and for the development of a range of new crystalline-based non-linear optical fibers.
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Leonid N. Butvina, Olesya V. Sereda, Eugeny M. Dianov, Ninel V. Lichkova, Vladimir N. Zagorodnev, "Single-mode photonic crystal fiber for the middle infrared", Proc. SPIE 6572, Enabling Photonics Technologies for Defense, Security, and Aerospace Applications III, 65720U (23 May 2007); doi: 10.1117/12.730398; https://doi.org/10.1117/12.730398

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