发明申请
- 专利标题: Method for producing twisted optical fiber with reduced polarization mode dispersion
- 专利标题(中): 具有降低的偏振模色散的扭转光纤的制造方法
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申请号: US10754904申请日: 2004-01-09
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公开(公告)号: US20040163418A1公开(公告)日: 2004-08-26
- 发明人: Sangeeta Mohanty , Nacham Sridhar , Salaj Sinha , Nitesh Gulati , Sthitadhi Das
- 申请人: STERLITE OPTICAL TECHNOLOGIES LIMITED
- 申请人地址: IN Aurangabad
- 专利权人: STERLITE OPTICAL TECHNOLOGIES LIMITED
- 当前专利权人: STERLITE OPTICAL TECHNOLOGIES LIMITED
- 当前专利权人地址: IN Aurangabad
- 优先权: IN38/MUM/2003 20030113
- 主分类号: C03B037/022
- IPC分类号: C03B037/022 ; C03B037/075
摘要:
A method for drawing an optical fiber having reduced polarization mode dispersion (PMD) draws an optical fiber from an optical fiber preform whose core ovality is at max about 3%, coats the optical fiber with acrylic polymer and twists the coated optical fiber with a pair of spinning wheels. The twisting of the fiber is achieved by four discrete spin rates that repeat in a periodic fashion after the drawing of certain lengths of the optical fiber. At least one of the spin rates varies in a trapezoidal manner along the respective one of drawn lengths of the optical fiber.
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