Loss measurement in perfect-structure glass holey fibers

The results of investigations of transmission properties and experimental measurements of losses in different kinds of holey fibers made from optical glass are presented. In the experiments the air-glass holey fibers with Nd-doped core and metal-doped core were used. Special attention was given to the quality of the holey fiber structure. The transmission properties were investigated at the wavelengths 0.633 μm and 1.05 μm (He- Ne laser and IFL laser, correspondingly). The losses at 1.05 μm are 0.00025 cm-1, being slightly smaller than the losses in bulk glass.