Optical fiber and optical fiber wiring board using the optical fiber
AssigneeMitsubishi Cable Industries, Ltd.
InventorsMinoru Yoshida, Katsuaki Kondo
Life of this patent
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Abstract
Optical fibers (220) are routed over a substrate (210), and an optical fiber wiring board (200) is thereby constructed. A relative refraction index difference Δ of the optical fiber (220) is increased to be greater than a relative refraction index difference Δ0 of a communication-dedicated single mode optical fiber, and a core diameter thereof is increased to be larger than a core diameter of the communication-dedicated optical fiber. Thereby, a mode field diameter thereof is set to be substantially the same as a mode field diameter of the communication-dedicated optical fiber.
Claims13
An optical fiber of a single mode type comprising a core and a cladding, wherein
- a relative refraction index difference of the core and the cladding is increased to be greater than a relative refraction index difference of a communication-dedicated single mode optical fiber and a core diameter is increased to be larger than a core diameter of the communication-dedicated single mode optical fiber, whereby a mode field diameter is set to be substantially the same as a mode field diameter of the communication-dedicated single mode optical fiber.
An optical-fiber wiring board comprising:
- an optical fiber of a single mode type including a core and a cladding;
- and a substrate on which the optical fiber is routed, wherein
- the optical fiber is constructed in such a manner that a relative refraction index difference of the core and the cladding is increased to be greater than a relative refraction index difference of a communication-dedicated single mode optical fiber and a core diameter thereof is increased to be larger than a core diameter of the communication-dedicated single mode optical fiber, whereby a mode field diameter thereof is set to be substantially the same as a mode field diameter of the communication-dedicated single mode optical fiber.
An optical-fiber wiring assembly constructed in such a manner that a communication-dedicated single mode optical fiber is connected to each of input and output ports of an optical-fiber wiring board including:
- an optical fiber of a single mode type having a core and a cladding;
- and a substrate on which the optical fiber is routed, wherein
- the optical fiber is constructed in such a manner that a relative refraction index difference of the core and the cladding is increased to be greater than a relative refraction index difference of the communication-dedicated single mode optical fiber and a core diameter thereof is increased to be larger than a core diameter of the communication-dedicated single mode optical fiber, whereby a mode field diameter thereof is set to be substantially the same as a mode field diameter of the communication-dedicated single mode optical fiber.
Dependencies are inferred from the claim text.