Title:
光ファイバ
Document Type and Number:
Japanese Patent JP4763106
Kind Code:
B2
Abstract:
The present invention relates to an optical fiber having, at least, a structure for effectively restraining microbend loss from increasing. This optical fiber is an optical fiber suitable for a dispersion-flattened fiber, a dispersion-compensating fiber, and the like, and insured its single mode in a wavelength band in use. In particular, since the fiber diameter is 140 mu m or more, this optical fiber has a high rigidity, so that the increase in microbend loss is effectively suppressed, whereas the probability of the optical fiber breaking due to bending stresses is practically unproblematic since the fiber diameter is 200 mu m or less. Also, since this optical fiber has a larger mode field diameter, it lowers the optical energy density per unit cross-sectional area, thereby effectively restraining nonlinear optical phenomena from occurring.
Inventors:
Eisuke Sasaoka
Shigeru Tanaka
Shigeru Tanaka
Application Number:
JP56420599A
Publication Date:
August 31, 2011
Filing Date:
July 07, 1999
Export Citation:
Assignee:
Sumitomo Electric Industries, Ltd.
International Classes:
G02B6/02; G02B6/036
Domestic Patent References:
| JP63143512A | ||||
| JP8054546A |
Foreign References:
| WO1998004941A1 | 1998-02-05 | |||
| US4770494A | 1988-09-13 |
Attorney, Agent or Firm:
Yoshiki Hasegawa
Yoshiki Kuroki
Ichira Kondo
Hiroto Kido
Masato Ikeda
Yoshiki Kuroki
Ichira Kondo
Hiroto Kido
Masato Ikeda