发明名称 |
OPTICAL FIBER, OPTICAL TRANSMISSION SYSTEM, AND METHOD OF MAKING OPTICAL FIBER |
摘要 |
Provided is an inexpensive low-loss optical fiber suitably used in an optical transmission network. An optical fiber includes a core, an optical cladding, and a jacket. The core has a relative refractive index difference between 0.2% and 0.32% and has a refractive index volume between 9%·mum2 and 18%·mum2. The jacket has a relative refractive index difference between 0.03% and 0.20%. Glass constituting the core has a fictive temperature between 1400° C. and 1560° C. Stress remaining in the core is compressive stress. A cutoff wavelength measured on a fiber having a length of 2 m is 1300 nm or more and a cutoff wavelength measured on a fiber having a length of 100 m is 1500 nm or less. An effective area at a wavelength of 1550 nm is 110 mum2 or more. A attenuation at a wavelength of 1550 nm is 0.19 dB/km or less. |
申请公布号 |
US2013148934(A1) |
申请公布日期 |
2013.06.13 |
申请号 |
US201213706458 |
申请日期 |
2012.12.06 |
申请人 |
SUMITOMO ELECTRIC INDUSTRIES, LTD.;SUMITOMO ELECTRIC INDUSTRIES, LTD. |
发明人 |
NAKANISHI TETSUYA;KONISHI TATSUYA;KUWAHARA KAZUYA |
分类号 |
G02B6/028;C03B37/027 |
主分类号 |
G02B6/028 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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