PHOTONIC CRYSTAL OPTICAL FIBER

Title:

PHOTONIC CRYSTAL OPTICAL FIBER

Document Type and Number:

Japanese Patent JP3814220

Kind Code:

B2

Abstract:

PROBLEM TO BE SOLVED: To provide a photonic crystal optical fiber durable against bending from the viewpoint of transmission loss, strength and reliability and usable for connecting parts of conventional optical fibers.
SOLUTION: Tensile strain due to bending can be decreased by using quartz for the core 3 and a clad 2 and by making the outer diameter of the clad 2 smaller than the outer diameter (125 μm) of a standard optical fiber. For example, by controlling the outer diameter of the clad 2 comprising quartz to 60 μm, the tensile strain is 0.002 even when the bending radius is decreased as small as 15 mm, which suppresses the strain to an almost equal level to that of conventional optical fibers. By forming resin coating layers 5 to 7 around the clad 2 to make the outer diameter of 125 μm, connecting parts such as connectors and mechanical splice for conventional optical fibers can be used.

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Inventors:

Masataka Nakazawa
Kazuya Murakami

Application Number:

JP2002114985A

Publication Date:

August 23, 2006

Filing Date:

April 17, 2002

Export Citation:

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