制品/结构美国已授权
Dispersion-shifted optical fiber
摘要
A dispersion-shifted optical fiber (NZDSF) includes a central core (r 1 , Dn 1 ), an inner cladding having at least three zones with a first intermediate cladding zone (r 2 , Dn 2 ), a second ring zone (r 3 , Dn 3 ) and a third buried trench zone (W tr , Dn t ). The buried trench zone has an index difference (Dn t …
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