Title:
光ファイバ
Document Type and Number:
Japanese Patent JP4134468
Kind Code:
B2
Abstract:
An optical fiber that can sufficiently suppress the generation of four-wave mixing and that can widen the bandwidth of wavelength of signal light. The optical fiber of the present invention has (a) a chromatic dispersion whose absolute value is not less than 8 ps·nm -1 ·km -1 and not more than 15 ps·nm -1 ·km -1 at a wavelength of 1.55 µm and (b) a dispersion slope whose absolute value is not more than 0.05 ps·nm -2 ·km -1 at a wavelength of 1.55 µm. It is more desirable that the optical fiber have (a) a chromatic dispersion whose absolute value is not less than 8 ps· nm -1 ·km -1 and not more than 12 ps·nm -1 ·km -1 at a wavelength of 1.55 µm, (b) a dispersion slope whose absolute value is not more than 0.03 ps·nm -2 ·km -1 at a wavelength of 1.55 µm, (c) a chromatic dispersion whose absolute value is not less than 5 ps·nm -1 ·km -1 at wavelengths between 1.45 and 1.65 µm, (d) an effective area not less than 45 µm 2 at a wavelength of 1.55 µm, and (e) a two-meter cutoff wavelength not less than 1.40 µm.
Inventors:
Kato
Masashi Onishi
Kubo Yuji
Masashi Onishi
Kubo Yuji
Application Number:
JP35326299A
Publication Date:
August 20, 2008
Filing Date:
December 13, 1999
Export Citation:
Assignee:
Sumitomo Electric Industries, Ltd.
International Classes:
G02B6/02; G02B6/036
Domestic Patent References:
| JP10073738A |
Foreign References:
| WO2001001179A1 | ||||
| WO2000017681A1 |
Attorney, Agent or Firm:
Yoshiki Hasegawa
Tatsuya Shioda
Shiro Terasaki
Masatoshi Shibata
Tatsuya Shioda
Shiro Terasaki
Masatoshi Shibata