Butvina Leonid N, Sereda Olesya V, Dianov Eugeny M, Lichkova Ninel V, Zagorodnev Vladimir N
Fiber Optics Research Center, Russian Academy of Science, Moscow, Russia.
Opt Lett. 2007 Feb 15;32(4):334-6. doi: 10.1364/ol.32.000334.
Microstructured crystalline optical fiber from silver halides is described. Both experimental and theoretical evidences are presented to establish that the fiber is effectively single mode at wavelength 10.6 micro m with numerical aperture NA=0.16 and optical losses of approximately 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 micro m provides great potential for applications in spectroscopy and for the development of a range of new crystalline-based nonlinear optical fibers.