We fabricated leakage channel microstructured crystalline fiber (MCF) from solid solution AgClxBr1-x for middle IR
with one ring of six rods and large mode field area 13 600 μm2 for the first time. Experiments proved that MCF is
effectively single mode at 10.6 μm wavelength, which corresponds to numerical simulation. Measured optical losses are
8 dB/m.
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.
We report the design, fabrication and optical characterization of a step index and microstructured crystalline optical
fibers from silver halide that are singlemode at 10.6 &mgr;m, the wavelength of a CO2 laser . Optical losses measured by cutback
method were about 2 dB/m. The wide transmission range of the material (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. Singlemode fibers for the middle infrared may be applied in infrared systems for heterodyne detecting.
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