SOUTHAMPTON, UK: 10.02.09: Fibercore Limited, the World's leading developer and manufacturer of specialty optical fibers, and a UK subsidiary of Cisco Systems, Inc has launched the HB-C range of bowtie coupler fibers with characteristics specifically developed to enable the fabrication of high performance, fused-taper, polarization maintaining (PM) couplers, primarily for the fiber sensor sector and in particular, for the next generations of fiber optic gyroscopes. 2008 saw significant growth in the Fiber Optic Gyroscope market and an emerging trend for higher performance variants in the sub-1.0