The work presents recent developments in optical fiber technology at the Re
search and Production Department of Fiber Optics (in short Fiber Optic Depa
rtment - FOD) at Biaglass Co. The modified multi-crucible technology of opt
ical fibers, called the MMC process throughout this work, was used to obtai
n several kinds of usable optical fibers for sensors and functional compone
nts of fiber microoptics. The MMC optical fibers were measured and their pa
rameters presented.