DISPERSION OPTIMIZED FIBER WITH LOW DISPERSION AND OPTICAL LOSS

摘要

A dispersion optimized fiber comprising a centre core, two side cores, a cladding and a outer glass, wherein first side core is provided onto outer periphery of center core, second side core is provided onto outer periphery of first side core and cladding region is provided onto outer periphery of second side core is disclosed, wherein centre core, first side core, second side core and cladding region have n1, n2, n3 and n4 refractive index respectively and 2a, 2b1, 2b2 and 2b3 outer diameter respectively.. The refractive index of outer glass is n5 and its diameter is selected to suit the requirement of desired fiber. The refractive indexes of said members are characterized by relationship n4