Olesya V. Sereda

Single-mode microstructured optical fiber for the middle infrared

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.

Singlemode leakage channel fiber for the middle infrared

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.

Singlemode crystalline fibers for the middle infrared

Microstructured and step-index fibers from silver halides singlemode at 10.6 mum and 5.5 mum are demonstrated. Experimental and theoretical evidences are presented to establish that the step-index fibers are singlemode at 10.6 mum.

Singlemode step-index and microstructured fibers for the middle infrared

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.

Single-mode photonic crystal fiber for the middle infrared

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.