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    • 1. 发明申请
    • POLARIZATION-MAINTAINING OPTICAL FIBER AND METHOD FOR MANUFACTURING THE SAME
    • 极化保持光纤及其制造方法
    • US20090181842A1
    • 2009-07-16
    • US12350571
    • 2009-01-08
    • Antoine ProulxSteeve MorencyClaude Pare
    • Antoine ProulxSteeve MorencyClaude Pare
    • C03C13/04C03B37/028
    • C03B37/01217C03B2203/31G02B6/024
    • A method for manufacturing a polarization-maintaining optical fiber is provided. The method includes (a) making a fiber preform by providing in an over-cladding tube: a core rod having an inner core and a cladding surrounding the inner core; at least one stress-applying part (SAP) disposed adjacent to the core rod along an outer periphery of the cladding thereof and having a coefficient of thermal expansion different from that of the cladding; inner filler rods arranged along the outer periphery of the core rod at positions where the SAP is not disposed and having a coefficient of thermal expansion different from that of the SAP; and a plurality of outer filler rods arranged adjacent the over-cladding tube between the over-cladding tube and inner filler rods, SAP and core rod, and consisting of a same material as the over-cladding tube; and (b) drawing the fiber preform to obtain the optical fiber.
    • 提供一种制造偏振保持光纤的方法。 该方法包括:(a)通过在外包层管中设置纤维预成型件:具有内芯和围绕内芯的包层的芯棒; 至少一个应力施加部分(SAP),沿其包层的外周设置在所述芯棒附近,并且具有与所述包层不同的热膨胀系数; 内填料杆沿着芯棒的外周排列在SAP未被设置并且具有不同于SAP的热膨胀系数的位置; 以及多个外填充棒,其布置在外包层管和内填充棒SAP和芯棒之间的外包层管附近,并由与外包层管相同的材料构成; 和(b)拉伸纤维预制件以获得光纤。