Single-mode optical fiber

Details Single-mode optical fiber Single-mode optical fiber

1996-11-26

1998-03-24

Healy, Brian

Optical waveguides

Optical fiber waveguide with cladding

Utilizing multiple core or cladding

385123, 385126, 385141, 385142, 385144, G02B 602

Patent

active

057321787

ABSTRACT:
This invention relates to a dispersion-shifted fiber containing silica glass as the major component and in which the zero-dispersion wavelength is set to fall within a range of 1,560 nm to 1,580 nm and the mode field diameter with respect to light having a predetermined wavelength is set to 8 .mu.or more. This dispersion-shifted fiber is a single-mode optical fiber capable of decreasing the influence of nonlinear optical effect and having a structure for suppressing an increase in bending loss of the optical fiber, and includes a core region constituted by the first core portion and the second core portion, and a cladding portion. In particular, an outer diameter a of the first core portion and an outer diameter b of the second core portion satisfy at least a relationship 0.10.ltoreq.a/b .ltoreq.0.29.

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Generic Requirements GR-20-Core Issue 1, Sep. 1994 Generic Requirements for Optical Fiber and Fiber Optic Cable pp. 4-1-4-14.

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