Multicore single-mode soft-glass optical fibers.

The work presents recent developments of chosen aspects of optical fiber technology at the Research Department of Fiber Optics (FOD) at Biaglas Co. The modified multi-crucible (MMC) technology of optical fibers, referred shortly to, throughout this work, as the MMC process was used to obtain several kinds of usable optical fibers for sensor and functional components of fiber microoptics. The MMC fibers, which are analyzed in this paper, are triple-core, double-core and twin-core, also quadrupole-core ones. These fibers belong to the broader family of multicore optical fibers (MOFs). Such fibers introduce a few of new possibilities to the transmissive or sensory photonic system design: wave and core multiplexing internal in-fiber interference and multichannel property. These features are subject of research in this work. Some of the unique properties of MOF's seem to have been shown (calculated and measured) foe the first time.